Published by U.S. Department of Interior/Geological Survey, Washington, D.C., 1978
Seller: Clausen Books, RMABA, Colorado Springs, CO, U.S.A.
Cloth. Condition: Near Fine. Sixth Edition. Former owner's blue inked name along upper edge of ffep, else textblock is clean and tight. All page edges are straight and sound. Faint sunning to the spine and light surface scuffing to the covers. 273pp., including references and index. Size: 8vo - over 7¾" - 9¾" tall. Hardcover.