Dyfyniad APA

(1996). International classification of goods and services: For the purposes of the registration of marks (7th ed.). WIPO.

Dyfyniad Arddull Chicago

International Classification of Goods and Services: For the Purposes of the Registration of Marks. 7th ed. Geneva: WIPO, 1996.

Dyfyniad MLA

International Classification of Goods and Services: For the Purposes of the Registration of Marks. 7th ed. WIPO, 1996.

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