Swanson, B. Marian. Understanding exceptional children and youth : an introduction to special education / B. Marian Swanson, Diane J. Willis. - Chicago : Rand McNally College Publishing Co., 1979. - xix, 440 p. : ill. ; 23 cm. - Rand McNally Education series. . Includes bibliographical references and index. Subjects--Topical Terms: Exceptional children. Dewey Class. No.: 371.9 SWA