APA (7th ed.) Citation

Rummel, R. J. (1994). Power, genocide and mass murder. Journal of peace research, 31, 1-10.

Chicago Style (17th ed.) Citation

Rummel, R. J. "Power, Genocide and Mass Murder." Journal of Peace Research 31 (1994): 1-10.

MLA (8th ed.) Citation

Rummel, R. J. "Power, Genocide and Mass Murder." Journal of Peace Research, vol. 31, 1994, pp. 1-10.