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