APA (7th ed.) Citation

Keyes, N. B. (1954). The American frontier: Our unique heritage. Hanover House.

Chicago Style (17th ed.) Citation

Keyes, Nelson Beecher. The American Frontier: Our Unique Heritage. Garden City, N. Y.: Hanover House, 1954.

MLA (8th ed.) Citation

Keyes, Nelson Beecher. The American Frontier: Our Unique Heritage. Hanover House, 1954.