1.
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2.
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Chicago, Follett Pub. Co. [1969]
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3.
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Chicago : Jewel Industries Inc., c1972.
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4.
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Kalamazoo, Mich. : Merchants, 1979.
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5.
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Barcelona, Spain : De Vecchi Ediciones, 2012. 2012
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6.
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7.
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New York : Macmillan, 1976, c1975.
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8.
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Des Moines, Meredith Corp., 1971]
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9.
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New York : Bantam Books, 1975.
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10.
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New York, The Macmillan Company, 1941.
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