1.
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Hauppauge, N.Y. : Nova Science Publishers, 2009.
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2.
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3.
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New York : Harper, 1965, c1958.
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4.
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Berkeley : University of California Press, c2004.
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5.
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Cambridge, MA : Malor Books, 1997.
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6.
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Oxford ; New York : Oxford University Press, 2004.
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7.
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Garden City, N.Y., Doubleday, 1957.
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8.
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New York, Grosset & Dunlap [1961, c1956]
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9.
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10.
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New York : Paddington Press : distributed by Grosset & Dunlap, 1978.
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