Obruchev, V. A. Fundamentals of geology : popular outline / V. A Obruchev ; translated from the Russian by David Myshne and Persy Ludwick. - Moscow : Foreign Languages Pub. House, 1959. - 373 p. : ill. ; 22 cm. Bibliography : p. 372-374. 310 310 Subjects--Topical Terms: Geology. Dewey Class. No.: 550 / O6f