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1.
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New York : Allworth Press, c2002.
Third edition.
English | N 635 CRA.B |
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2.
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Muenchen : C.h. Beck'sche Verlagsbuchhandlung, 1995.
German | N 635 HEI.S |
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3.
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New York : Allworth Press, c2002.
First edition.
English | N 635 DUB.T |
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4.
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[Place of publication not identified] : [publisher not identified], 2002.
First edition.
English | N 635 KRA.L |
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