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New York : United Nations Development Programme (UNDP), 2003. 2003 edition.
English | C 259 UNDP.C |
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2.
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Geneva : World Intellectual Property Organization, 1992.
English | E 234M234 WIPO.S |
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3.
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Geneva, Switzerland : World Intellectual Property Organization, 1990.
English | E 2313 WIPO.G |
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4.
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Courbevoie [France] : Institut National de la Propriété Industrielle, 1980.
French | 10A OMPI |
|