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Springer Science and Business Media LLC, 1966
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Informa UK Limited, 1963
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Elsevier BV, 1964
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American Psychological Association (APA), 1964
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Wiley, 1959
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JSTOR, 1959
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University of Chicago Press, 1956
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Informa UK Limited, 1958
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Informa UK Limited, 1956
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Wiley, 1957
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American Psychological Association (APA), 1957
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American Psychological Association (APA), 1955
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American Psychological Association (APA), 1955
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American Psychological Association (APA), 1954
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American Psychological Association (APA), 1985
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American Psychological Association (APA), 1984
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American Psychological Association (APA), 1984
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Wiley, 1976
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JSTOR, 1976
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Elsevier BV, 1975