Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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