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How should I use in-text citation in case of one book from two authors with same surnames?

For instance; a source from Paul Ehrlich and Anna H. Ehrlich.

Which one is correct?

" ... " (Ehrlich & Ehrlich, 2015)

" ... " (P. Ehrlich & Ehrlich, 2015)

  • Are you familiar with LaTeX? The language has lots of tools (BibTeX, BibLaTeX, NatBib) for making sure citations turn out correctly. – artificial_moonlet May 6 at 14:45
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  • " ... " (Ehrlich & Ehrlich, 2015)
  • " ... " (P. Ehrlich & A. H. Ehrlich, 2015)
  • " ... " (Paul Ehrlich & Anna H. Ehrlich, 2015)

Are all correct. The adopted reference style will dictate which should be used.

  • Thanks, I use APA style – Shadovx May 6 at 9:34
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    @Shadovx in APA the goal is to make sure the in text citation unambiguously links to a single item in the reference list. In this case it would be the first one. Now if P Erlich wrote a book in 2015 and A Erlich wrote an article in 2015, you would use initials, but if P Erlich wrote two things in 2015, you would use 2015a and 2015b. – StrongBad May 6 at 11:58

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