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Oxford Dictionary of National Biography
Jack Morrell, ‘Playfair, John (1748–1819)’, first published Sept 2004, 1130 words
http://dx.doi.org/10.1093/ref:odnb/22367
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The Oxford Biography Index is an authoritative and accurate index of notable people – their names, their dates, and their fields of activity. |
Oxford Biography Index entry John PlayfairPlayfair, John (1748–1819), mathematician and geologist
Oxford Biography Index Number 101022367 [what is this?] Full text available
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