Zum Inhalt springen
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Weinheim: Beltz, 1975-
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Fort Worth [u.a.]: Harcourt, Brace, Jovanovich, 1986
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New York [u.a.]: Holt, Rinehart and Winston, 1979
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Weinheim: Beltz, 1979
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Weinheim: Beltz, 1978
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Weinheim: Beltz, 1975
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New York [u.a.]: Holt, Rinehart and Winston, 1967
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Singapore [u.a.]: Wadsworth, 2000
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American Educational Research Association (AERA), 1977
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American Educational Research Association (AERA), 1977
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Wiley, 1978
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American Psychological Association (APA), 1972
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SAGE Publications, 1972
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American Educational Research Association (AERA), 1973
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SAGE Publications, 1972
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American Educational Research Association (AERA), 1966
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SAGE Publications, 1966
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SAGE Publications, 1967
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SAGE Publications, 1967
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American Educational Research Association (AERA), 1967