APA način citiranja (7. izdanje)

Willoughby, W. W. (1924). The fundamental concepts of public law. Macmillan.

Čikaški stil citiranja (17. izdanje)

Willoughby, Westel Woodbury. The Fundamental Concepts of Public Law. New York: Macmillan, 1924.

MLA način citiranja (9. izdanje)

Willoughby, Westel Woodbury. The Fundamental Concepts of Public Law. Macmillan, 1924.