D.A. Howell

Longman c1989

correct

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D.A. Howell and Roger Brown ; foreword by David Easton

Heinemann Educational Books for the Institute of Education, University of London 1983 Studies in education new ser. 12

pbk.

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[by] George Baron and D. A. Howell

Athlone Press , Distributed by Humanities Press 1974

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