APA-Zitierstil (7. Ausg.)

Billington, R. A. (1965). The American frontier (2nd ed.). American Historical Assoc., Service Center for Teachers of History.

Chicago-Zitierstil (17. Ausg.)

Billington, Ray Allen. The American Frontier. 2nd ed. Washington, DC: American Historical Assoc., Service Center for Teachers of History, 1965.

MLA-Zitierstil (9. Ausg.)

Billington, Ray Allen. The American Frontier. 2nd ed. American Historical Assoc., Service Center for Teachers of History, 1965.