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1by Berkner, Lutz K.“...U.S. Dept. of Education, Office of Educational Research and Improvement :...”
Published 1996
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2by Berkner, Lutz K.“...U.S. Dept. of Education, Office of Educational Research and Improvement :...”
Published 1997
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3by Berkner, Lutz K.“...U.S. Dept. of Education, Office of Educational Research and Improvement, National Center...”
Published 1998
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4by Berkner, Lutz K.“...U.S. Dept. of Education, Office of Educational Research and Improvement, National Center...”
Published 1996
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5by Berkner, Lutz K.“...U.S. Dept. of Education, Office of Educational Research and Improvement, National Center...”
Published 2000
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6by Berkner, Lutz K.“...U.S. Dept. of Education, Office of Educational Research and Improvement, National Center...”
Published 2000
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Government Document Microform Book