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2.
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Indianapolis, The Bobbs-Merrill Company [c1915]
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3.
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New York, Gordian Press, 1968.
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4.
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[Hamden, Conn.] Archon Books, 1969 [c1961]
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5.
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Columbia : University of Missouri Press, c2007.
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6.
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Auburn, CA : Audio Partners Pub. Corp., p1997.
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7.
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New York : Chelsea House Publishers, c1992.
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8.
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New York : Kraus Reprint, 1969.
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9.
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Philadelphia, University of Pennsylvania Press [1956]
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10.
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