When you are doing a research paper or a writing and you have two people doing it, do you put a comma before the and in something like... By Arielle, and Bella?

  • Do you mean in the attribution or within the article itself? If I was saying who wrote it I would be using surnames as well. If it was within the article I wouldn't use a comma. – S. Mitchell May 17 '16 at 19:12

No comma is needed in lists of two things: "By Arielle and Bella." And "I have a dog and a cat."

If the list has more than two items, then add commas: "Written by Arielle, Bella, and Clara." (Some styles don't add that last comma, the "Oxford comma.")

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  • Comma never precedes "and" ...it's redundant. – Tapper7 May 18 '16 at 22:49
  • @Tapper7, whether to use the Oxford comma depends on the style guide you're using. (Unless my employer uses something different, I use Chicago Manual of Style, which specifies usage of the comma.) I like using it since it provides clarity. – Ken Mohnkern May 19 '16 at 11:31

If you cite a source following a style guide like the APA Manual, you may encounter something like the following:

Mohnkern, K., & Maiuro, A. (2016). A heading on a paper. ...

Here, the comma before the "&" is the closing comma after the parenthesized abbreviated first name ("K.").

Maybe you saw something like this and thought it applied to all lists of names?

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  • I'd read that paper. – Ken Mohnkern May 21 '16 at 12:27

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