APA (7th ed.) Citation

Gaddis, T. E., & Long, J. O. (1970). Killer: A journal of murder. Macmillan.

Chicago Style (17th ed.) Citation

Gaddis, Thomas E., and James O. Long. Killer: A Journal of Murder. New York: Macmillan, 1970.

MLA (9th ed.) Citation

Gaddis, Thomas E., and James O. Long. Killer: A Journal of Murder. Macmillan, 1970.