World Intellectual Property Organization (Geneva, Switzerland). (2018). Patent cooperation treaty yearly review 2018: International patent system. WIPO.
Chicago Style (17th ed.) CitationWorld Intellectual Property Organization (Geneva, Switzerland). Patent Cooperation Treaty Yearly Review 2018: International Patent System. Geneva: WIPO, 2018.
MLA (9th ed.) CitationWorld Intellectual Property Organization (Geneva, Switzerland). Patent Cooperation Treaty Yearly Review 2018: International Patent System. WIPO, 2018.
Warning: These citations may not always be 100% accurate.