World Intellectual Property Organization (Geneva, Switzerland). (2009). Nice, Vienna, Locarno classifications: NIVILO:CLASS, version 2.3 ([9th ed.].). WIPO.
Chicago Style (17th ed.) CitationWorld Intellectual Property Organization (Geneva, Switzerland). Nice, Vienna, Locarno Classifications: NIVILO:CLASS, Version 2.3. [9th ed.]. Geneva: WIPO, 2009.
MLA (9th ed.) CitationWorld Intellectual Property Organization (Geneva, Switzerland). Nice, Vienna, Locarno Classifications: NIVILO:CLASS, Version 2.3. [9th ed.]. WIPO, 2009.
Warning: These citations may not always be 100% accurate.