Dyfyniad APA

(1971). Convention for the protection of producers of phonograms against unauthorized duplication of their phonograms, 1971. WIPO.

Dyfyniad Arddull Chicago

Convention for the Protection of Producers of Phonograms Against Unauthorized Duplication of Their Phonograms, 1971. Geneva: WIPO, 1971.

Dyfyniad MLA

Convention for the Protection of Producers of Phonograms Against Unauthorized Duplication of Their Phonograms, 1971. WIPO, 1971.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.