Book, Workbook, and Forms Set: Mental Retardation: Definition, Classification, and Systems of Supports

by: Ruth Luckasson · Robert L. Schalock · Deborah M. Spitalnik · Scott Spreat · Marc Tasse · Martha E. Snell · David L. Coulter · Sharon A. Borthwick-Duffy Paperback details (United States). ISBN: 978-0-940898-84-4 ISBN-10: 0-940898-84-5 American Association on Intellectual and Developmental Disabilities · 2002