Mental Retardation, Personality, and Motivational Systems (International Review of Research in Mental Retardation): Volume 31
by Harvey N. Switzky, Laraine Masters Glidden
ISBN 13: 9780123662316
Format: Hardcover (360 pages) Publisher: Academic Press Published: 11 Apr 2006
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Personality and Motivational Differences in Persons With Mental Retardation (The LEA Series on Special Education and Disability)
by Harvey N. Switzky
ISBN 13: 9780805825701
Format: Paperback (430 pages) Publisher: Routledge Published: 12 Sep 2001