Laycock, George. The alien animals. - [1st ed.] - Garden City, N.Y., Published for the American Museum of Natural History [by] the Natural History Press [1966] - 240 p. illus. 22 cm. LCCN: 66015772 Subjects--Topical Terms: Introduced animals.Animal introduction. LC Class. No.: QL86 / .L3 Dewey Class. No.: 590