1.
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New York : Facts on File, c2004.
QC981.8.G56 L66 2004 |
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2.
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Cambridge, Mass. : MIT Press, c2007.
QC981.8.G56 E43 2007 |
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3.
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Summertown, Tenn. : Book Pub. Co., c1989.
QC981.8.G56 B38 1989 |
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4.
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Huntington, N.Y. : Nova Science Publishers, c2001.
QC981.8.G56 G5531 2001 |
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5.
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Washington, D.C., USA : Worldwatch Institute, c1989.
QC981.8.G56 F43 1989 |
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6.
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Malden, MA : Blackwell Pub., c2007.
QC981.8.G56 A73 2007 |
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7.
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Cambridge, UK ; New York : Cambridge University, 2004.
QC981.8.G56 H68 2004 |
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8.
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New York : Abbeville Press, 1992.
QC981.8.G56 R48 1992 |
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9.
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New York : Overlook Duckworth. c2008.
QC981.8.G56 L39 2008 |
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10.
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London ; New York : Continuum, 2002.
QC981.8.G56 H65 2002 |
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