World Intellectual Property Organization (Geneva, Switzerland). (2021). Geographical indicators: An introduction. World Intellectual Property Organization.
Chicago-Zitierstil (17. Ausg.)World Intellectual Property Organization (Geneva, Switzerland). Geographical Indicators: An Introduction. Geneva: World Intellectual Property Organization, 2021.
MLA-Zitierstil (9. Ausg.)World Intellectual Property Organization (Geneva, Switzerland). Geographical Indicators: An Introduction. World Intellectual Property Organization, 2021.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.