Editore: United States Geological Survey., 1962
Da: Eryops Books, Stephenville, TX, U.S.A.
No Binding. Condizione: Very Good. Large folded sheet consisting of geologic map superposed on topographic contours and with structure contours, a cross-section, an explanation of stratigraphic units, a columnar section detailing the geology and economic geology, a discussion of economic geology, and references cited; in printed envelope; ex-corporate library; in very good condition. Map.