Palmstierna, E. (1917). International Congress for the study of the principles of a durable peace, Berne, 1916. An international police. The Hague: Nijhoff.
Chicago-referens (17:e uppl.)Palmstierna, E. International Congress for the Study of the Principles of a Durable Peace, Berne, 1916. An International Police. The Hague: Nijhoff, 1917.
MLA-referens (8:e uppl.)Palmstierna, E. International Congress for the Study of the Principles of a Durable Peace, Berne, 1916. An International Police. The Hague: Nijhoff, 1917.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.