Editore: United States Geological Survey., 1979
Da: Eryops Books, Stephenville, TX, U.S.A.
No Binding. Condizione: Very Good. Large folded sheet consisting of geologic map superposed on topographic contours, 2 cross-sections, correlation of map units, columnar section and description of stratigraphic units, a table summarizing age-date sample localties, a table summarizing the geochemistry, a discussion of geology, and references cited; in printed envelope; ex-corporate library; in very good condition. Map.