The most commonly used citation style in Chemistry is American Chemical Society (ACS) Style. Below you'll find recommended resources for citing in ACS and examples of in-text citations. If you have questions please reach out the subject specialist librarian in Chemistry, Lindsay Decker.
There are three ways you can cite in-text with ACS. Double-check with your professor or publisher to make sure you're using the correct one.
Anytime you use information from someone else's work you need an in-text citation to attribute the idea to the author. The same is true for direct quotes.
Author-date: Put the author(s) last name and the publication year in parantheses immediately after referencing their ideas in your paper.
Example: You need an in-text citation when you're using information you got from another source (Decker, 2021).
Decker (2021) writes that you need an in-text citation anytime you use information from another source.
If there's more than one author, format it like this: (Gray and Bonnet, 2019) or (Hutchinson et al., 2018) if there's more than three authors.
Italicized numbers: Citations are denoted by italicized numbers in parentheses and references are listed at the end in the order they first appeared in the paper.
Example: Jeffords found that Smith's theory was incorrect (4).
Superscript Numbers: Citations appear as superscript numbers and references are listed at the end of the paper in the order they first appeared.
Example: Perrone et. al successfully recreated the experiment.9 However, a variety of other studies were unable to do so.3-8,12
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