La Habana: Editorial nacional de Cuba, Ministerio de Educación, 1965. First edition (presumed; no earlier dates stated). Paperback. Octavo in color illus stapled wraps; 64 p., illus., 23 cm. Documents the Polish-Cuban Speleology Expedition of 1961. Rare. Only one copy listed in WorldCat. In Spanish. || Geology -- Cuba. Caves..... More
New York: F. Watts, 1971. First edition (stated). Hardcover. Small quarto in color-illus boards; 129 p. illus. in b/w and color; maps; 26 cm; Bibliography: p. 128. A very well illustrated introduction to caves. Uncommon. More
Paris: A. Michel, 1961. First edition. Paperback. Small quarto in full color DJ; unpaged. (mainly photos) ; illus. 25 cm. In French. Date to last page (in both places) is 1961. High quality gravure b/w photos and some color plates. || Speleology. Caves -- France -- Ariege. Caving... More
New York: Macmillan, 1973. First edition, first printing (stated). Hardcover. Medium octavo in photo illus DJ; 216 p. illus. 25 cm ; bibliographical references. Parau Cave (Iran) ; Caves. More
New York: Nomad Pub. 1947. Paperback. Octavo in stapled white illus wraps; 47 p. : ill., map ; 22 cm. Uncommon. Numerous worthwhile b/w photos. Covers the first and second expeditions. || Caves -- Virginia. Speleology -- Virginia. Endless Caverns (Va.); Subterraneana. More