Harris, M. P. A field guide to the birds of Galapagos / Michael Harris ; with 12 plates and 68 line ill. by Barry Kent Mackay. - London : Collins, 1974. - 160 p., [6] leaves of plates : ill. (some col.) ; 20 cm. Includes index. ISBN: 0002120445 : £3.50 LCCN: 75320929 Nat. Bib. No.: GB*** Subjects--Topical Terms: Birds--Identification.--Galapagos IslandsPássaros--Identificação--Ilhas Galápagos LC Class. No.: QL694.G2 / H37 Dewey Class. No.: 598.2