World Intellectual Property Organization & Commission of the European Communities. (1979). World patent information. [WIPO jointly with the Commission of European Communities].
Cita Chicago Style (17a ed.)World Intellectual Property Organization y Commission of the European Communities. World Patent Information. [Geneva, Switzerland]: [WIPO jointly with the Commission of European Communities], 1979.
Cita MLA (9a ed.)World Intellectual Property Organization y Commission of the European Communities. World Patent Information. [WIPO jointly with the Commission of European Communities], 1979.
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