Polynov, B.B. (Editor) Predvaritel'nyi otchet pochvenno- geograficheskoi ekspeditsii v severnuiu Mongoliiu v 1926 godu [Preliminary Account of the Geographical Expedition to Northern Mongolia in 1926]. Leningrad 1930
First edition. 8vo, pp. 149, 8 plates, 3 folding maps and tables, illustrations in the text, text in Russian. A very good copy in rather worn original wrappers, spine torn.