by: Ruth Luckasson · Robert L. Schalock · Deborah M. Spitalnik · Scott Spreat · Marc Tasse · Martha E. Snell · David L. Coulter · Sharon A. Borthwick-Duffy
Paperback
ISBN: 978-0-940898-82-0
ISBN-10: 0-940898-82-9
American Association on Intellectual and Developmental Disabilities · 2002