Answered By: Writing Center
Last Updated: Nov 09, 2015     Views: 2

The ACS style uses three different citing styles. 

First, the ACS style uses superscript numbers.  The numbers are placed after the punctuation.  

  • e.g. She is from Ohio.1

Second, the ACS style uses italic numbers in parentheses,  The numbers are placed before the punctuation. 

  • e.g. She is from Ohio (1). 

Third, the ACS style also uses author name and year of publication in parentheses.  The author-year system is also placed before the punctuation.  

  • e.g. She is from Ohio (Kim, 2015).  

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