(1997). International classification of the figurative elements of marks: Vienna classification (4th ed.). WIPO.
Citación estilo ChicagoInternational Classification of the Figurative Elements of Marks: Vienna Classification. 4th ed. Geneva: WIPO, 1997.
Cita MLAInternational Classification of the Figurative Elements of Marks: Vienna Classification. 4th ed. WIPO, 1997.
Warning: These citations may not always be 100% accurate.