1.
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Athens : University of Georgia Press, c1991.
English | N 141 PAT.N |
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2.
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Boston : Writer, Inc., c1982.
English | N 621 PRE.W |
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3.
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London [England] : Sweet & Maxwell, 1993. Fourth edition.
Italian | N 40 PHI.W |
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4.
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London : Sweet and Maxwell, [1990] Thirteenth edition.
English | N 13 COP.C(13) |
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5.
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New York, New York : Copyright Society of the USA, 1981.
English | 14 US |
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6.
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Stockholm [Sweden] : Nordiskt Immateriellt Rättsskydd (NIR), 1992.
English | N 40(413) SE 3 |
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