Records of the Diplomatic Conference for the Revision of the International Convention for the Protection of New Varieties of Plants : Geneva, 1991 / International Union for the Protection of New Varieties of Plants (UPOV)
Av: Diplomatic Conference for the Revision of the International Convention for the Protection of New Varieties of Plants (Geneva : 1991).
Medverkande: Union for the Protection of New Varieties of Plants [pbl].
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