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CSE Quick Citation Guide

The CSE citation style is frequently used in the Natural Sciences (Biology, Chemistry, Geology, Mathematics, Physics).

In Text Citations

CSE's name-year in-text reference takes the form of the author's last name and the year of publication, in parentheses.

Single Author

  • For in-text references, list the author and the year

Due to uneasiness on the part of male spectators the foot-long hotdog has been removed from the concession menu (Flanders 2002).

Same Author in Different Years

  • List the author and the years in chronological sequence

Flanders's studies of concession offerings (Flanders 1970, 1975) have shown that...

Same Author in the Same Year​

  • List the author and the years with the addition of an alphabetic designator to the year in both the in-text and end reference.

...and the most recent work on the Flying Hellfish (Burns 2001a, 2001b) is...

Multiple Authors

  • For 2 authors, list both names in the in-text reference, separated by "and".

...and the most recent work on the Flying Hellfish (Burns and Simpson 2001) is...

  • For more than 2 authors, list the first author followed by "et al." and the year

... but later studies (Carlson et al. 2004) determined that...

Corporation or Organization as Authors

  • List the initial letter of each part of name or readily recognizable abbreviation and the year

The landmark report on nuclear power (SNPP 1979) was...

Multiple In-Text Citations

  • For several in-text references that occur in the same location, give them in chronological sequence from earliest to latest, separated by semicolons. If published in the same year, sequence by month and then the year. If date information is unavailable, sequence alphabetically by author names. 

The landmark report on nuclear power (Smith 1979; Johns 1983; Dawson 1999) was...


Where to cite

Cite sources as close as practicable to the information they support. This might mean citing a source at the end of a sentence or in the middle of a sentence. 

If you name your author in the sentence near the citation, you do not need to repeat that name in the citation itself:

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