An evaluation of the effectiveness of specially designed apparatus to aid mentally retarded subjects in learning ball catching skills

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An evaluation of the effectiveness of specially designed apparatus to aid men...

Ronald Cornelius Johnson2 editions

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Ronald Cornelius Johnson
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An evaluation of the effectiven...Ronald Cornelius Johnson
AE
An evaluation of the effectiveness of specially designed apparatus to aid mentally retarded subjects in learning ball catching skills
Ronald Cornelius Johnson | 1973
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An evaluation of the effectiven...
AE
An evaluation of the effectiveness of specially designed apparatus to aid mentally retarded subjects in learning ball catching skills
1970