APA (7th ed.) Citation

Kirk, D. (1946). Europe's population in the interwar years. League of Nations.

Chicago Style (17th ed.) Citation

Kirk, Dudley. Europe's Population in the Interwar Years. [χ.τ.]: League of Nations, 1946.

MLA (8th ed.) Citation

Kirk, Dudley. Europe's Population in the Interwar Years. League of Nations, 1946.