The Hill-Caves of Yucatan: A Search for Evidence of Man's Antiquity in the Caverns of Central America.
Norman, Oklahoma: University of Oklahoma Press, 1975. Reprint. Softcover. Octavo. xliv + 182pp. B/w maps & illustrations. The Civilization of the American Indian series. Wrappers slightly rubbed & discolored, top-edge foxed, else a solid VG copy. More