Phelps, E. M. (1919). Selected articles on a League of Nations (4th ed., rev. and enl.). H.W. Wilson Company.
Lua i Stíl Chicago (17ú heag.)Phelps, Edith M. Selected Articles on a League of Nations. 4th ed., rev. and enl. New York: H.W. Wilson Company, 1919.
Lua MLA (8ú heag.)Phelps, Edith M. Selected Articles on a League of Nations. 4th ed., rev. and enl. H.W. Wilson Company, 1919.
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