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ASA/CSSA/SSSA Citation Guide

Quick Citation Guide for using the SSSA Citation Style

About ASA/CSSA/SSSA Citation Style

For more detailed information on ASA/CSSA/SSSA citation style see The American Society of Agronomy (ASA), Crop Science Society of America (CSSA), and Soil Science Society of America (SSSA) Publications Handbook (PDF). Citation info starts on page 1-10.

Unless otherwise noted, all images on this page come from the ASA/CSA/SSSA style manual:

Citation of ASA/CSSA/SSSA Style manual

Citation of ASA/CSSA/SSSA Style manual

In-Text Citations

In-text citations are citations that occur within the body of your paper.  ASA/CSSA/SSSA use the author-year notation system. Below are some examples.

Single author

There has been at least 532 volcanic eruptions in recorded history (Ramos, 2015).

Ramos (2015) found 532 volcanic eruptions in recorded history.

Two authors

There has been at least 532 volcanic eruptions in recorded history (Ramos and Wilson, 2015).

Ramos and Wilson (2015) found 532 volcanic eruptions in recorded history.

More than two authors 

There has been at least 532 volcanic eruptions in recorded history (Ramos et al., 2015).

Ramos et al. (2015) found 532 volcanic eruptions in recorded history.

More than two studies cited

There has been at least 532 volcanic eruptions in recorded history (Ramos and Wilson, 2015; Martinez, 2019).

Ramos and Wilson (2015) and Martinez (2019) both found 532 volcanic eruptions in recorded history.

If citing a specific page instead instead of an entire chapter or article

There has been at least 532 volcanic eruptions in recorded history (Ramos, 2015, p. 42).

Ramos (2015, p. 42) found 532 volcanic eruptions in recorded history.

 

Creating a Reference List

The reference list (or reference section) of your paper contains a list of all of the resources that you cited. Here's some things to keep in mind when creating a reference list:

  • Arrange the list alphabetically by the last name of authors.
    • In the reference list itself, give the names of all authors. Optionally, if the paper has more than six authors, the rest may be abbreviated to 'et al.'
  • Two or more articles by the same author (or authors) are listed chronologically.

 

Citing Journals

The layout of a journal citation is as follow:

ASA/CSSA/SSSA diagram of journal citation

 

Example of journal citations 

Citing Journals in ASA/CSA/SSSA

 

Citing Magazine Articles:

ASA citation of magazine

 

Citing Books, Bulletins, and Reports:

ASA diagram of book citation

Example of Book, Bulletin, and Report Citation:

ASA book citation example

 

Citing Chapters Within Books, Bulletins, and Reports:

Citing book chapters within ASA/CSSA/SSSA

Example of Citing Individual Chapters within an Edited  Book

Citing a chapter within a book

 

There are many more citation examples given for various resources within The American Society of America (ASA), Crop Science Society of America (CSSA), and Soil Science Society of America (SSSA) Publications Handbook (PDF). Citation info starts on page #10.

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