1.
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Philadelphia : University of Pennsylvania Press, 1971.
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2.
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Philadelphia : University of Pennsylvania Press, c2013.
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3.
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Philadelphia [Pa.] : University of Pennsylvania Press, c1998.
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4.
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Philadelphia : University of Pennsylvania Press, c1998.
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5.
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Philadelphia : University of Pennsylvania Press, 1980.
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6.
|
New York, N.Y., U.S.A. : Basil Blackwell, 1985.
HV8599.E85 P48 1985 |
Map It |
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7.
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Philadelphia, PA : University of Pennsylvania Press, 2002.
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8.
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Philadelphia, University of Pennsylvania Press [1972]
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9.
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Philadelphia : University of Pennsylvania Press, c2001.
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10.
|
[Philadelphia] : University of Pennsylvania Press, 1978.
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