APA (7th ed.) Citation

Merk, F. (1978). History of the westward movement. Knopf.

Chicago Style (17th ed.) Citation

Merk, Frederick. History of the Westward Movement. New York: Knopf, 1978.

MLA (8th ed.) Citation

Merk, Frederick. History of the Westward Movement. Knopf, 1978.