APA
World intellectual property organization (WIPO), . (2002). Trademarks manual. Switzerland: Geneva.
Chicago
World intellectual property organization (WIPO), . 2002. Trademarks manual. Switzerland: Geneva.
Harvard
World intellectual property organization (WIPO), . (2002). Trademarks manual. Switzerland: Geneva.
MLA
World intellectual property organization (WIPO), . Trademarks manual. Switzerland: Geneva. 2002.