APA (7th ed.) Citation

Nolan, F. W. (1998). The West of Billy the Kid. University of Oklahoma Press.

Chicago Style (17th ed.) Citation

Nolan, Frederick W. The West of Billy the Kid. Norman: University of Oklahoma Press, 1998.

MLA (9th ed.) Citation

Nolan, Frederick W. The West of Billy the Kid. University of Oklahoma Press, 1998.