Proctor, Noble Songbirds : how to attract them and identify their songs / Noble Proctor, PhD. - Emmaus, Pa. : Rodale Press , c1988. - 160 p. 18 u.s. : il. maps. retrs. ISBN: 0-87857-773-4 Subjects--Topical Terms: Birds, Attracting ofBirdsongs---North America Dewey Class. No.: 598.2 PRO