Mental Retardation: Definition, Classification, and Systems of Supports

Retardation

by R. Luckasson

Paperback

ISBN: 978-0-940898-30-1

ISBN-10: 0-940898-30-6

Amer Assn on Intellectual & Devel · 1992

See also (possibly by other authors):
2002HardcoverMental Retardation: Definition, Classification, and Systems of Supports