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Proper Usage

Member Since

September 30, 2013

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Possessive with acronyms ending in S

  • September 30, 2013, 8:16pm

There is a lot of knowledge here, but no one seems to have answered porsches' question (although somewhat restated by Apot). If the last letter of the initialism is "S" and stands for a plural such as "services," does one show possession following the initialism with a single apostrophe or apostrophe S?