Published by United States Geological Survey., 1977
Seller: Eryops Books, Stephenville, TX, U.S.A.
Map
No Binding. Condition: Good. Large folded sheet; includes a geologic map superposed on topographic contours, an explanation of geology/economic geology and references cited; ex-corporate library; small portion of map colored in blue pencil; a couple of small light stains on lower edge; o/w in good condition. Map.