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E. A. Perkins

3 published titles

Helping the retarded : a systematic behavioural approach

1 edition

  • ISBN: 0906054001
  • British Institute of Mental Handicap
  • 1980
  • Details

Teaching basic behavioural principles

(Contributor)

1 edition

  • ISBN: 0906054206
  • British Institute of Mental Handicap
  • 1980
  • Details

Developmental checklist

1 edition

  • ISBN: 0906054257
  • British Institute of Mental Handicap
  • 1980
  • Details

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