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Keppen, Petr Ivanovich
(1793-1864).
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The general population of Russia in 1838: translation of the article of the extra-ordinary academician PI Keppen, published in the Bulletin Scientifique, vol. 7 .- [St. Petersburg, 1840] .- 27 p. ; 25 cm .- Without tit. l. and obl.
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ББК 60.73 (2) 5-3 ББК 63.3 (2) 521.2-1
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