Não informado. (1920). British Yearbook of International Law. Royal Institute of International Affairs.
Chicago-Zitierstil (17. Ausg.)Não informado. British Yearbook of International Law. Oxford, Inglaterra: Royal Institute of International Affairs, 1920.
MLA-Zitierstil (8. Ausg.)Não informado. British Yearbook of International Law. Royal Institute of International Affairs, 1920.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.