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London ; New York : Routledge, 1996.
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2.
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New York, F. Ungar Pub. Co. [1967]
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3.
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New York, F. Ungar Pub. Co. [1967]
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4.
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Malden, MA : Blackwell Publishers, 2003.
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5.
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Frankfurt : ontos verlag, 2010.
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6.
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Rumania : Zeta Books, 2007.
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7.
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Oxford, UK ; Malden, MA, USA : Blackwell, 1997.
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8.
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East Lansing] Michigan State University Press, 1969.
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9.
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New York, Harper and Row [1968]
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10.
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Detroit, Wayne State University Press, 1967 [i.e.1969]
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