Talk:Pressure–volume diagram

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Please add info pertaining to IC engines

External links modified (January 2018)
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 * Added archive https://web.archive.org/web/20120310071206/http://www.archivingindustry.com/Indicator/chapterzero.pdf to http://www.archivingindustry.com/Indicator/chapterzero.pdf

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Cheers.— InternetArchiveBot  (Report bug) 19:08, 25 January 2018 (UTC)