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1.
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University Park, PA : The Penn State University Libraries, [2012] ©2012
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2.
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Lanham, Md. : Rowman & Littlefield : Distributed by National Book Network, c2006.
HQ1237.5.U6 S76 2006 |
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3.
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Washington, D.C. : CQ Press, c2005.
HQ1236.5.U6 C66 2005 |
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4.
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Chapel Hill : University of North Carolina Press, c2003.
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5.
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University Park, Pennsylvania : The Pennsylvania State University Press, 2012.
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6.
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Albany : State University of New York Press, 2004.
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7.
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Chapel Hill : University of North Carolina Press, c2003.
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8.
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New York : Routledge, 2000.
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