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CSE Style Guide

CSE style is the citation style recommended by the Council of Science Editors for use in biology and other sciences.

The current 8th edition of Scientific Style and Format: The CSE Manual for Authors, Editors, and Publishers is available:


There are three different methods of CSE Style:

  • name-year
  • citation-sequence
  • citation-name

In-text citations and end references are formatted differently with each method.

Examples provided here are in name-year sequence. Refer to the CSE Style Manual for help with the citation-sequence or citation-name methods.

Include references in the body of your paper as in-text citations. Cited references or resources are then listed alphabetically at the end of the research paper.

In-Text Citations

The in-text citation is a brief reference within the body of the paper that indicates the source consulted. It should properly attribute any ideas, paraphrases, or direct quotations to your source and should direct readers to an entry in the list of cited references.

The name-year in-text citation consists of the author’s name and year of publication

Example: (McCormac and Kennedy 2017)

Example: (Gordon et al. 2016)

Author’s name in sentence

If the author is named in the sentence, just include the year in parentheses.

Example: According to McCormac and Kennedy (2017) …

Cited References

List the references to sources that you have cited within the text alphabetically by author under the heading “References”, “Cited References”, “Literature Cited”, or “Bibliography”. You can list references that you consulted but did not cite for additional reading or other purposes under a separate heading such as “Additional References” or “Supplemental References”.


Print Journal Article

See Section of the CSE Manual.

Meise CJ, Johnson DL, Stehlik LL, Manderson J, Shaheen P. 2003. Growth rates of juvenile Winter Flounder under varying environmental conditions. Trans Am Fish Soc. 132(2):225-345.

Online Journal Article

See Section of the CSE Manual.

Savage E, Ramsay M, White J, Beard S, Lawson H, Hunjan R, Brown D. 2005. Mumps outbreaks across England and Wales in 2004: observational study. BMJ. [accessed 2005 May 31];330(7500):1119–1120. doi:10.1136/bmj.330.7500.1119.

Online Encyclopedia Article

See Section of the CSE Manual.

Wagner S, Johanna T. 2016. Pregnancy. In: Gale encyclopedia of medicine [database on the Internet]. 5th ed. Vol. 2. Farmington Hills (MI): Gale. [accessed 2017 Jul 13]. (Gale Virtual Reference Library). p. 260-792.


Print Book

See Section of the CSE Manual.

McCormac JS, Kennedy G. 2004. Birds of Ohio. 2nd ed. Auburn (WA): Lone Pine.


See Section of the CSE Manual.

Rollin, BE. 1998. The unheeded cry: animal consciousness, animal pain, and science [Internet]. 3rd ed. Ames (IA): The Iowa State University Press. [accessed 2017 August 27].

Book Chapter

See Section of the CSE Manual.

McDaniel TK, Valdivia RH. 2005. Cellular microbiology. 2nd ed. Washington (DC): ASM Press. Chapter 2, New tools for virulence gene discovery; p. 473-488.


See Section of the CSE Manual.

It can often be difficult to locate all the required elements of a citation on a webpage. Work with the information provided; if an author or other element is not listed, leave that element out and do not create placeholders.

Include citation elements in this order:

Author. Title of Homepage. Date of publication. Edition. Place of publication: publisher; [date updated; date accessed]. Notes.

Example: APSnet: plant pathology online. 2005. St Paul (MN): American Phytopathological Association; [accessed 2005 Jun 20].

Conference Paper

See Section of the CSE Manual.

Lee DJ, Bates D, Dromey C, Xu X, Antani S. c2003. An imaging system correlating lip shapes with tongue contact patterns for speech pathology research. In: Krol M, Mitra S, Lee DJ, editors. CBMS 2003. Proceedings of the 16th IEEE Symposium on Computer-Based Medical Systems; New York. Los Alamitos (CA): IEEE Computer Society. p. 307–313.

Dissertation or Thesis

See Section of the CSE Manual.

Oviedo S. 1995. Adolescent pregnancy: voices heard in the everyday lives of pregnant teenagers [master’s thesis]. [Denton (TX)]: University of North Texas.

Technical Report

See Section of the CSE Manual.

Feller BA. 1981. Health characteristics of persons with chronic activity limitation, United States, 1979. Hyattsville (MD): National Center for Health Statistics (US). Report No.: VHS-SER-10/137. Available from: NTIS, Springfield, VA; PB88-228622

Questions & Help

If you have questions on this, or another, topic, contact a librarian for help!