Published by Bureau of Economic Geology, 1979, 31 pp. + 6 maps., 1979
Seller: Eryops Books, Stephenville, TX, U.S.A.
Soft Cover. Condition: Very Good. ORIGINAL PUBLICATION; Softcover text and six maps in printed folder; ex-library; folder w/ bumped corners and creased top edges; small tear on fore-edge; o/w in very good condition.