Dyfyniad APA

World Intellectual Property Organization. (1988). Background reading material on intellectual property. World Intellectual Property Organization.

Dyfyniad Arddull Chicago

World Intellectual Property Organization. Background Reading Material on Intellectual Property. Geneva, Switzerland: World Intellectual Property Organization, 1988.

Dyfyniad MLA

World Intellectual Property Organization. Background Reading Material on Intellectual Property. World Intellectual Property Organization, 1988.

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