Geographical description of the lower reaches of the Ob River and the conditions of navigation. - St. Petersburg: Type. Marine M-va in Ch. Admiralty, 1909.-86, 15, [2] p. : tab. - Dep. reprints from Notes on Hydrography, 1909, Vol. 31. Proceedings of the same author (2 last nenum s.). - Ex. with reader notes (?).
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