APA-Zitierstil (7. Ausg.)

Willoughby, W. W. (1929). The constitutional law of the United States (2. ed.). Baker, Voorhis.

Chicago-Zitierstil (17. Ausg.)

Willoughby, Westel Woodbury. The Constitutional Law of the United States. 2. ed. New York: Baker, Voorhis, 1929.

MLA-Zitierstil (9. Ausg.)

Willoughby, Westel Woodbury. The Constitutional Law of the United States. 2. ed. Baker, Voorhis, 1929.