Burton, John A. Birds of the tropics / [by] John A. Burton, with a foreword by Dillon Ripley. - London, Orbis Publishing [1973] - 128 p. col. illus. 31 cm. - The World of nature . ISBN: 0856131474 LCCN: 74159223 Nat. Bib. No.: GB*** Subjects--Topical Terms: Birds--Tropics.Pássaros--Trópicos.Birds--Pictorial works.--Tropics LC Class. No.: QL695.5 / .B87 Dewey Class. No.: 598.43