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Washington, DC, 1962 ; Online-Ausg.: Chester, Vt: NewsBank, inc, 2008
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Washington, DC, 1944 ; Online-Ausg.: Chester, Vt: NewsBank, inc, 2008
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Elsevier BV, 2001
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Elsevier BV, 1998
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JSTOR, 1991
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SAGE Publications, 1968
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The Macmillan Company, 1968
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Cambridge University Press (CUP), 1968
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Cambridge University Press (CUP), 1966
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SAGE Publications, 1962
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PERSEE Program, 1963
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Oxford University Press, 1964
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Cambridge University Press (CUP), 1964
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SAGE Publications, 1965
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PERSEE Program, 1965
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Oxford University Press (OUP), 1965
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Oxford University Press, 1965
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American Association for the Advancement of Science (AAAS), 1961