Editore: USGS Bulletin 1122-F, 1962, 113 pp. + 8 maps/sections in pocket., 1962
Da: Eryops Books, Stephenville, TX, U.S.A.
Soft Cover. Condizione: Good. ORIGINAL PUBLICATION; Softcovers; ex-library; light creasing of corners of wraps and pages; light foxing of edges; o/w in good condition.