Παραπομπή APA

(1997). International classification of the figurative elements of marks: Vienna classification (4th ed.). WIPO.

Παραπομπή Chicago Style

International Classification of the Figurative Elements of Marks: Vienna Classification. 4th ed. Geneva: WIPO, 1997.

Παραπομπή MLA

International Classification of the Figurative Elements of Marks: Vienna Classification. 4th ed. WIPO, 1997.

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