Referencing for Biological Sciences

Avoid Plagiarism 

  • It is important that you correctly acknowledge all sources used to obtain information by indicating the original author(s) as well as the specific location of the facts, arguments and quotations as you prepare your essay or assignment to avoid plagiarism. A Reference list is an alphabetical listing of all sources (printed and electronic) from which information has been taken either directly (by literal quotation) or indirectly (by paraphrase), and cited in your text. A Bibliography is similar, but may also contain references that you may have read as background information but did not necessarily cite in your text. Bibliographies are more usually found in books, whereas you are more likely to use a Reference list in your assignments.
  • The University takes a serious view of plagiarism.  Even when you are not intending to copy, it is clear that submitting someone else's work or ideas is not evidence of your own grasp of the material and cannot earn you marks.  The penalties for plagiarism can extend to imposing an overall coursework grade of zero. 

Some resources to help you:


Selecting a Reference Style  

The referencing style that is recommended for Biological Sciences is the APA style (APA = American Psychological Association) which is an author/date referencing style.

The Student Learning Centre has a website called Referencite which contains the resource Quickcite that will generate samples of different types of references for you, including ones in APA style.

A more complete list of reference types that you may encounter is given below.

Examples of how to use the APA Style:

  1. In-Text Citations  (in the body of your essay)

One author
Brown (2002) found……
Or: In a recent study (Brown, 2000) …..

Two authors
Brown and Green (2000) found…. (cite both authors each time you cite work)
Or: In a recent study (Brown & Green, 2000) ….

Three, four or five authors
Brown, Green, Black, and White (2000) found…. 
Or: In a recent study (Brown, Green, Black & White 2000) ….
Cite all authors the first time, but subsequently use only first author et al. and include year for the first citation in a new paragraph, for example:
Brown et al. (2002) found……
Or: In a recent study (Brown et al., 2000) …..

Six or more authors
Brown et al. (2002) found……
Or: In a recent study (Brown et al., 2000) …..
Use et al. the first time and all subsequent times

If the work has no authors
The title of the work is used instead
(Harper's illustrated Biochemistry,  2003)

Corporate authors
If there are no author names present, but a group name is, cite the group name followed by the year of publication. 
Example: (Department of Conservation, 2008).
If the group name is lengthy, you may shorten the name when using it in an in-text citation.

Work discussed in a secondary source 
In the text of your essay name the original paper, and give a citation for the secondary source that you read. For example, if Seidenberg and McClelland's work is cited in Coltheart et al. and you did not read the original paper by Seidenberg and McClelland, and only read the Coltheart et al. paper

In the text, use the following citation: 

In Seidenberg and McClelland's study (as cited in Coltheart, Curtis, Atkins, & Haller, 1993), .....

Give the secondary source in your reference list at the end of your essay; i.e. the Coltheart et al. paper. 

Quotes
For a direct quotation in the text, the format will vary depending on whether the source is in print or electronic format. When citing print sources, give the author, year and page number in brackets. Many electronic sources do not provide page numbers. Instead, use the ¶ character or the abbreviation para. and include the paragraph number after.

Smith (2002, p.46, para. 6) found that urchin grazing was constant.
or
As Smith (2002, ¶ 6), stated, "urchin grazing was constant."

If you intend to include a very long quote, place it in an indented paragraph on a new line. In such cases, do not use quotation marks. If you don't quote a source exactly and you paraphrase or summarise another author's ideas, you must still acknowledge the source of your ideas.

Two articles by the same author with the same publication date
Use letters (a, b, c... etc.) to differentiate between articles with the same author names and publication dates, for example:
(Paul, 1990a) and (Paul, 1990b)

Include the letters with the publication dates in the full citation in your reference list at the end of your essay, for example:

Paul, G.S. (1990a) An improbable view of Tertiary dinosaurs. Evolutionary Theory, 9(2), 309-316.
Paul, G.S. (1990b) The many myths, some old, some new, of Dinosaurology. Modern Geology, 16, 69-99.

Specific parts of a source
To cite the specific part of a source, indicate the page, chapter, figure, table or equation at the appropriate point in the text.  Always give page numbers for direct quotations. Examples:
          (Green, Blue & Red, 1999, fig. 2)  (Black & Brown, 1982, p.35)   (Green, 2004, chap. 7)
If you include a copy of the figure in your essay etc., include the citation in your figure caption.

Citing Personal Communication
Personal communication can be personal interviews, letters, memos, e-mails, non-archived messages from discussion groups or bulletin boards, telephone dialogues etc. try to provide as exact a date as possible and include initials with surname.

J.L. Smith (personal communication, April 1, 2002) estimates that most University of Auckland biology students will....

or (J.L. Smith, personal communication, July 3, 2002) estimates that most University of Auckland biology students will...

 

  2. Reference List (at the end of your essay)

N.B. In the APA referencing style Journal titles are NOT abbreviated, if you need to expand abbreviated journal titles, the following journal title abbreviation lists will help. 

Journal article, by one author
Lucero,  P. (1997). Catabolite inactivation of the yeast maltose transporter requires ubiquitin-ligase npi1/rsp5 and ubiquitin-hydrolase npi2/doa4. FEMS Microbiology Letters, 147(2), 273-277.

Journal article, by two authors
Hwang, L.H., & Murray, A.W. (1997). A novel yeast screen for mitotic arrest mutants identifies DOC1, a new gene involved in cyclin proteolysis. Molecular Biology of the Cell, 8(10), 1877-1887.

Journal article, by up to seven authors
(include all authors' names)
Smithe, A., Goletto, B., Chan, C., Williams, D., Tahatai, M., Manalo, E., & Singh, R. (2011). Uneven muscle mass growth patterns in Antarctic fish. Journal of Fish Morphology, 18(4), 43-48.

Journal article, by eight or more authors.
(include the first six authors, then three full stops followed by the last author)
Melnichenko, E.M., Erwin, B.D., White, A.I., Williams, D.I., Thomasia, E.F., Lamis, E.F., . . . Ward, R.U. (2010). Biogeographic distribution of coastal Antarctic krill. Antarctic Biology, 5(10), 102-106.

Book, by two authors
Campbell, N.A., & Reece, J.B. (2002). Biology (6th ed.). San Francisco, Benjamin Cummings. 

Edited book
De Bonis, L., Koufos, G.D., Andrews, P. (Eds.). (2001). Phylogeny for the Neogene hominoid primates of Eurasia. Cambridge, New York: Cambridge University Press.

Article/chapter in an edited book
Lockyer, M.J., & Nicholls, S.C. (1988). Variation in Plasmodium falciparum gene structure. In M.J. Turner & D. Arnot (Eds.) Molecular genetics of parasitic protozoa. (pp. 12-17). Cold Spring Harbor, N.Y: Cold Spring Harbor Laboratory.

The title of the book is Molecular genetics of parasitic protozoa and the chapter title is Variation in Plasmodium falciparum gene structure. The rule of thumb is that the book title always comes after the 'In.' Note that in this example, Plasmodium falciparum is italicised only because it is a taxonomic name. Otherwise, chapter titles are in regular font. If a taxonomic name appeared in a figure caption (which itself is in italics), it would be in regular font so as to distinguish it from the rest of the caption text.

Unpublished thesis
Lin, V.F. (2004). Characterisation of surface-associated proteins from two Acidovorax temperans colony morphotypes. Unpublished master's thesis, University of Auckland, Auckland, New Zealand.

(Note that in this case the taxonomic name is in regular font so as to distinguish it from the rest of the title)

Book with no author or editor
Harper's illustrated Biochemistry (26th ed.). (2003). New York : Lange Medical Books/McGraw-Hill.

Newspaper article
When citing a newspaper article, list the day, month and year of the article.

  • Newspaper article from an online database:  Gibbs, P.R. (2002, March 21). Leigh Marine Laboratory to get new status. The New Zealand Herald, Retrieved April 1, 1996, from Newztext database.

  • Newspaper article from an online site:  Dr Doug Carrie made new BBIM director (2002, March 15). National Business Review, Retrieved March 18, 2002, from www.nbr.co.nz

  • Newspaper article from print version of a newspaper (no author given): Mussel farm study released (1998, July 12). The New Zealand Herald, p. 19.

Citing a video
Enter the name of the person or organisation responsible for the video, the year, title, words [video recording], distributor's name and address. Tip: If the video is a library item, check the record on Voyager to verify that you have all the details correct

University of Auckland (2003). Winemaking in New Zealand, [video recording]. Auckland: University of Auckland Educational Media Centre.

Citing a discussion forum in the Reference list
Give the name of the person who posted the submission, the date posted, the subject line content, message identifier (if available), words "Message posted to" and the address of the newsgroup. Type the complete URL which should link directly to the article. This discussion message could be included in the Reference List if it was recoverable data, but online messages that were not recoverable would not be included in the list.

Citing lecture material
If the lecture material (notes or slides) is available in electronic format ie on Cecil, use the format for referencing electronic sources to reference this material even if you first read the material elsewhere.

Smith, P.R. (2005). Benthic fauna of New Zealand. Retrieved August 25, 2005 from the University of Auckland, BIOSCI 208  Cecil website: http://cecil.auckland.ac.nz/login.aspx

Information from a web page
Electronic information sources are now commonly used in the sciences. As with printed sources, if you utilise another author's ideas or writing in your assignment, or if you quote any part of their text, you must cite where you got the information from. It is important that before using any information from the Internet that you first verify that the information is valid. Anyone can initiate an internet website and add content to it. Once you have verified that the information is accurate, a citation should include the following features:

  • Author(s) name(s) or if no author(s), the body responsible
  • Title of the reference in italics
  • Publication information with dates
  • Named source of the information
  • The date you accessed the information on the Internet
  • The Internet URL address

Article retrieved from the Internet
Roach, J. (February 5, 2003). Do Fish Use Cold Current To Cross Tropics?  Retrieved March 11, 2003, from  http://news.nationalgeographic.com/news/2003/02/0205_0302 05_toothfish.html

If there is no date on the web page you can use the abbreviation n.d. in brackets to indicate "no date", e.g.

Roach, J. (n.d.). Do Fish Use Cold Current To Cross Tropics?  Retrieved March 11, 2003, from http://news.nationalgeographic.com/news/2003/02/0205_0302 05_toothfish.html

Documents with no author or date
For a stand-alone document on the web with no author and/or date, again use (n.d.) for no date and list the title without any author.

Documents from large websites
If the document is contained within a large and complex website such as a University or Government site, you should identify the organization and the relevant department or sub-section before giving the web address of the document:

Kistler, J. (2007) Charles Fleming Award for environmental achievement, 27 September 2007. Retrieved 7 Oct, 2007, from University of Auckland School of Biological Science website: http://www.sbs.auckland.ac.nz/uoa/science/about/departments/sbs/news/2007/09/charles-fleming-award-for-environmental-achievement.cfm

N.B. Cite electronic journals and electronic books the same way as for printed journals and books, using the examples above.

Useful Websites

University of Auckland Library Guide to APA
More examples

APA Style.org
The APA's own page about style. Provides up to date information on APA style, including style tips, book reviews and electronic referencing.

APA Referencing - produced by Curtin University of Technology Library
Provides a useful introduction to APA referencing, citing lots of examples.

APA wizard
Walks you through the steps of creating an APA citation. Enter the information correctly in the boxes provided, and the wizard will result in a correct APA citation.  

The Student Learning Centre - The University of Auckland
The Student Learning Centre runs several relevant referencing workshops, such as APA Referencing, Avoiding Plagiarism and Referencing for Websites, refer to the Undergraduate Brochure for times and availability.


EndNote  

EndNote is a specialised database program for storing and managing references. References in EndNote libraries can be sorted and searched, and incorporated automatically into your essay and Reference List or Bibliography!  If you are intending to do postgraduate study, EndNote is recommended. There are two relevant Endnote courses that you can attend (both have similar content so you only need to do either one or the other). The courses are run regularly during each semester, and class sizes are limited to 10/session which allows time for questions and feedback. Sessions are two hours long with a break at half time, and can be booked via the library workshop booking page.

1) Endnote parts I and II - Biology and Biomedical Sciences - City

2) Endnote parts 1 and II - Science - City


Parts of this page are based on 'Business Research: citing Electronic and Print Sources using APA Style' at  /subject-guides/bus/topicguides/apa_for_business.htm

Contact: j.lavas@auckland.ac.nz
File Last updated: July 22, 2010