(2018). Guide to the international registration of marks under the Madrid Agreement and the Madrid Protocol ((updated 2018).). World Intellectual Property Organization.
Chicago-Zitierstil (17. Ausg.)Guide to the International Registration of Marks Under the Madrid Agreement and the Madrid Protocol. (updated 2018). Geneva: World Intellectual Property Organization, 2018.
MLA-Zitierstil (9. Ausg.)Guide to the International Registration of Marks Under the Madrid Agreement and the Madrid Protocol. (updated 2018). World Intellectual Property Organization, 2018.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.