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1.
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Boston : Focal Press, c1997.
English | F 40 LUT.C |
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2.
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Basingstoke [U.K.] : Palgrave/Macmillan, 2002.
Danish | K 325 SHU.L |
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3.
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New York : J. Wiley & Sons, c1999.
Third edition.
English | F 40 BUR.P |
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4.
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Washington, D.C. : The Association, 1999.
English | F 13 SHA.M |
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