Heward, William L., 1949- Exceptional children : an introductory survey of special education / William L. Heward, Michael D. Orlansky. - 3rd ed. - Columbus : Merrill Pub. Co., c1988. - xiii, 657 p. : ill. ; 24 cm. Includes indexes. Bibliography: p. 603-636. ISBN: 0675208904 LCCN: 87061583 Subjects--Topical Terms: Sonderpädagogik--USABehinderte--Bildung--USA LC Class. No.: LC3981 / .H49 1988 Dewey Class. No.: 371.9