1.
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Westport, Conn., Greenwood Press [1970, c1949]
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2.
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Freeport, N.Y., Books for Libraries Press [1968, c1959]
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3.
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Boston : Twayne Publishers, c1977.
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4.
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Cham, Switzerland : Palgrave Macmillan, [2018] ©2018
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5.
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Cambridge, Massachusetts : Harvard University Press, [2014].
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6.
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Philadelphia, University of Pennsylvania Press [1964, c1963]
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7.
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University, University of Alabama Press [1972]
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8.
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Boston : Little, Brown, c1980.
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