APA (7th ed.) Citation

DeArment, R. K. (2003). Deadly dozen: Twelve forgotten gunfighters of the old West. University of Oklahoma Press.

Chicago Style (17th ed.) Citation

DeArment, Robert K. Deadly Dozen: Twelve Forgotten Gunfighters of the Old West. Norman: University of Oklahoma Press, 2003.

MLA (9th ed.) Citation

DeArment, Robert K. Deadly Dozen: Twelve Forgotten Gunfighters of the Old West. University of Oklahoma Press, 2003.