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English | E 224:399 (F/E/S/R) |
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Geneva. Switzerland : World Intellectual Property Organization, 1979.
reprinted 1995.
English | E 224:399 |
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Geneva [Switzerland] : World Intellectual Property Organization, 1993.
revised 3.
English | E 224:399 (A) |
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Geneva [Switzerland] : World Intellectual Property Organization, 1994.
English | E 224:399(C) |
8.
Geneva : World Intellectual Property Organization, 1994.
English | 10.34667/tind.20405 | E 231M335 WIPO.P |
9.
Geneva : WIPO, 1993.
English | 10.34667/tind.20285 | E 231F65 WIPO.M |