Farrand, John,. The Audubon Society master guide to birding - New York : Alfred A. Knoff, 1987 - 3 v. : ilus. Contenido: v.1 Loons to sandpipers; v.2 Gulls to dippers; v.3 Old world warblers to sparrows LCCN: 64386 Subjects--Topical Terms: AvesOrnitología. Dewey Class. No.: 582.2 / F37