Published by Transactions of the Geological and Prospecting Service of U. S. S. R., Fasc. 27, 1931, 42 pages., 1931
Seller: Eryops Books, Stephenville, TX, U.S.A.
Soft cover. Softcovers; institutional stamp on front wraps; missing rear wraps; portions of paper covering of spine perished; light creasing of corners of wrap and pages; good condition.