Mathematical geography, drawn from reliable writers and in favor of youth developed by Yakov Ruban. - Nikolaev: in the printing house of the Black Sea navigational school, 1802. - [8], 138 pp., 1 p. yl. ; 21
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1. Territory of Russia (collection). 2. Mathematical geography - Educational publications.
ББК 26.8г.я7 ББК 26.0я7
Electronic copy source: PB The place where the original was stored: ЦВМБ