APA (7th ed.) Citation

Hawgood, J. A. (1967). America's western frontiers: The exploration and settlement of the Trans-Mississippi West ([1st American ed.].). Knopf.

Chicago Style (17th ed.) Citation

Hawgood, John A. America's Western Frontiers: The Exploration and Settlement of the Trans-Mississippi West. [1st American ed.]. New York: Knopf, 1967.

MLA (9th ed.) Citation

Hawgood, John A. America's Western Frontiers: The Exploration and Settlement of the Trans-Mississippi West. [1st American ed.]. Knopf, 1967.