Harris, Robbie frey50 Grey-cheeked parakeets and other Brotogeris Robbie Harris ; [photographs by Fred Harris]. - Neptune, NJ T.F.H. Publications 1985 - 160 p. ill. (some col.) ; 21 cm. Spine title: Grey-cheeked parakeets. Includes index. "PS-830"--Spine. Bibliography: p. 157. ISBN: 0866220496 LCCN: 85168632 Subjects--Topical Terms: Gray-cheeked parakeet.Brotogeris. LC Class. No.: SF473.G74 / H37 1985 Dewey Class. No.: 636.6/864