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Harmondsworth [u.a.]: Penguin Books, 1970
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Springer Science and Business Media LLC, 1975
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JSTOR, 1972
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SAGE Publications, 1968
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American Psychological Association (APA), 1968
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American Psychological Association (APA), 1966
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American Psychological Association (APA), 1964
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American Psychological Association (APA), 1965
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Springer Science and Business Media LLC, 1965
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American Psychological Association (APA), 1963
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American Psychological Association (APA), 1965
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American Psychological Association (APA), 1963
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American Psychological Association (APA), 1963
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American Psychological Association (APA), 1964
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Elsevier BV, 1964
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American Psychological Association (APA), 1964
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American Psychological Association (APA), 1965
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Elsevier BV, 1963
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American Psychological Association (APA), 1962
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American Psychological Association (APA), 1962