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by: Robert L. Schalock · Sharon A. Borthwick-Duffy · Wil H.E. Buntinx · David L. Coulter · Ellis M. (Pat) CraigHardcover
ISBN: 978-1-935304-04-3 ISBN-10: 1-935304-04-6 American Association on Intellectual and Developmental Disabilities · 2009 |