Princeton University. Office of Population Research, League of Nations. Secretariat. Economic, Financial and Transit Department, & Kirk, D. (1946). Europe's population in the interwar years. League of Nations.
Chicago-referens (17:e uppl.)Princeton University. Office of Population Research, Financial and Transit Department League of Nations. Secretariat. Economic, och Dudley Kirk. Europe's Population in the Interwar Years. [Geneva]: League of Nations, 1946.
MLA-referens (9:e uppl.)Princeton University. Office of Population Research, et al. Europe's Population in the Interwar Years. League of Nations, 1946.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.