APA (7th ed.) Citation

Mort, T. A. (2021). Cheyenne summer: The battle of Beecher Island : a history. Pegasus Books.

Chicago Style (17th ed.) Citation

Mort, T. A. Cheyenne Summer: The Battle of Beecher Island : A History. New York: Pegasus Books, 2021.

MLA (9th ed.) Citation

Mort, T. A. Cheyenne Summer: The Battle of Beecher Island : A History. Pegasus Books, 2021.