APA (7th ed.) Citation

Billington, R. A. (1956). The far Western frontier: 1830 - 1860. Harper & Row.

Chicago Style (17th ed.) Citation

Billington, Ray Allen. The Far Western Frontier: 1830 - 1860. New York [u.a.]: Harper & Row, 1956.

MLA (8th ed.) Citation

Billington, Ray Allen. The Far Western Frontier: 1830 - 1860. Harper & Row, 1956.