Style de citation APA (7e éd.)

Willoughby, W. W. (1910). The rights and duties of American citizenship. American Book Co..

Style de citation Chicago (17e éd.)

Willoughby, Westel Woodbury. The Rights and Duties of American Citizenship. New York : Cincinnati [etc.]: American Book Co., 1910.

Style de citation MLA (8e éd.)

Willoughby, Westel Woodbury. The Rights and Duties of American Citizenship. American Book Co., 1910.