APA-referens (7:e uppl.)

Ogg, F. A. (1924). The governments of Europe (Rev. ed.). Macmillan.

Chicago-referens (17:e uppl.)

Ogg, Frederic Austin. The Governments of Europe. Rev. ed. New York: Macmillan, 1924.

MLA-referens (8:e uppl.)

Ogg, Frederic Austin. The Governments of Europe. Rev. ed. Macmillan, 1924.