APA (7th ed.) Citation

Johnstone, W. W., & Johnstone, J. A. (2025). Hard men to kill. Pinnacle Books.

Chicago Style (17th ed.) Citation

Johnstone, William W., and J. A. Johnstone. Hard Men to Kill. New York: Pinnacle Books, 2025.

MLA (8th ed.) Citation

Johnstone, William W., and J. A. Johnstone. Hard Men to Kill. Pinnacle Books, 2025.

Warning: These citations may not always be 100% accurate.