Thornton, I. W. B. Darwin's islands a natural history of the Galápagos [by] Ian Thornton. - Garden City, N.Y. Published for the American Museum of Natural History [by] Natural History Press 1971. - xiv, 322 p. illus., maps. 22 cm. Bibliography: p. 279-312. LCCN: 69020061 //r853 Subjects--Topical Terms: Natural history--Galápagos Islands. Subjects--Geographic Terms: Galapagos Islands. LC Class. No.: QH123 / .T48 Dewey Class. No.: 500.9/866/5