APA (7th ed.) Citation

Rippy, J. F. (1926). The United States and Mexico. A. A. Knopf.

Chicago Style (17th ed.) Citation

Rippy, J. Fred. The United States and Mexico. New York: A. A. Knopf, 1926.

MLA (9th ed.) Citation

Rippy, J. Fred. The United States and Mexico. A. A. Knopf, 1926.