Forshaw, Joseph Michael. Parrots of the world [by] Joseph M. Forshaw. Illustrated by William T. Cooper. - Garden City, N.Y., Doubleday, 1973. - 584 p. illus. (part col.) 40 cm. Bibliography: p. 568-574. ISBN: 0385056281 9780385056281 LCCN: 73081116 Subjects--Topical Terms: Parrots. LC Class. No.: QL696.P685 / F67 Dewey Class. No.: 598.7