Educational research : competencies for analysis and application / Lorraine Rumbel Gay, Peter W. Airasian.
Material type: TextPublication details: Upper Saddle River, N. J. : Merrill, c2000.Edition: 6th edDescription: xxv, 660p. : ill. ; 26 cmISBN:- 0130961035 hard bound
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Includes bibliographical references and indexes.