APA (7th ed.) Citation

Costello, J. (1991). Ten days that saved the west. Bantam Press.

Chicago Style (17th ed.) Citation

Costello, John. Ten Days That Saved the West. London, New York, Toronto, Sydney, Auckland: Bantam Press, 1991.

MLA (8th ed.) Citation

Costello, John. Ten Days That Saved the West. Bantam Press, 1991.