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2.
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Minneapolis, University of Minnesota Press [1966]
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3.
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Carbondale, Southern Illinois Univ. Pr. [1963]
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4.
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Cham : Palgrave Macmillan, c2019.
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5.
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London : Reaktion Books, 2014. ©2014
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6.
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Minnespolis : University of Minnesota Press, 1966.
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7.
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8.
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New York, Twayne Publishers [c1963]
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9.
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[Pittsburgh] : University of Pittsburgh Press [1961]
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