APA (7th ed.) Citation

Hough, E. (1918). The passing of the frontier: A chronicle of the Old West (Textbook ed.). Yale Univ. Press.

Chicago Style (17th ed.) Citation

Hough, Emerson. The Passing of the Frontier: A Chronicle of the Old West. Textbook ed. New Haven: Yale Univ. Press, 1918.

MLA (9th ed.) Citation

Hough, Emerson. The Passing of the Frontier: A Chronicle of the Old West. Textbook ed. Yale Univ. Press, 1918.