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New Haven [Conn.] : Yale University Press, c2011.
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[Washington] U.S. Govt. Print. Off., 1940.
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3.
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Dekalb, Northern Illinois University Press [1968]
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4.
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Minneapolis : University of Minnesota Press, c1993.
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5.
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New York : P. Smith, 1941.
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6.
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Cambridge, Harvard University Press, 1969.
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7.
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Freeport, N.Y., Books for Libraries Press [1970, c1945]
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8.
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Ames : Iowa State University Press, 1975.
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9.
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Manhattan, KS : Sunflower University Press, c1980.
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