Van Osdol, William R. An introduction to exceptional children / [electronic resource] / William R. Van Osdol, Don G. Shane.. — 2d ed.. — Dubuque, Iowa : : W.C. Brown Co.,, c1977.. — ix, 437 p. : : ill. ; 23 cm. Includes bibliographies and indexes. ISBN: 0697060160 9780697060167 LCCN: 77082362 Subjects--Topical Terms: Special education. LC Class. No.: LC4015 / .V36 1977 Dewey Class. No.: 371.9