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McGraw-Hill
> G.D. Thorne
G.D. Thorne
title
ISBN-13
(ISBN-10)
year of publication
Understanding the Mentally Retarded
978-O-O7-O64526-4
(O-O7-O64526-4)
1965
D. T.
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G D
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G. T.
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G Thorne
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Gareth D. Thorne
G. D. Tomahin