Palmstierna, E. (1917). International Congress for the study of the principles of a durable peace, Berne, 1916. An international police. The Hague: Nijhoff.
Chicago-viite (17. p.)Palmstierna, E. International Congress for the Study of the Principles of a Durable Peace, Berne, 1916. An International Police. The Hague: Nijhoff, 1917.
MLA-viite (8. p.)Palmstierna, E. International Congress for the Study of the Principles of a Durable Peace, Berne, 1916. An International Police. The Hague: Nijhoff, 1917.
Varoitus: Nämä viitteet eivät aina ole täysin luotettavia.