By Wilson Carlene   Haskell Simon   in Journal of Intellectual & Developmental Disability

ISSN:1469-9532|14|2|103-108

Informa Healthcare‎(1988)‎

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By Tustin R.   Kent Penny   Bond Malcolm   Haskell Simon   in Journal of Intellectual & Developmental Disability

ISSN:1469-9532|17|3|303-312

Informa Healthcare‎(1991)‎

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By Tustin R.   Kent Penny   Haskell Simon   Bond Malcolm   in Journal of Intellectual & Developmental Disability

ISSN:1469-9532|17|3|285-302

Informa Healthcare‎(1991)‎

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