APA (7th ed.) Citation

Otterbein, K. F. (1970). The evolution of war: A cross-cultural study. Human Relations Area Files Press.

Chicago Style (17th ed.) Citation

Otterbein, Keith F. The Evolution of War: A Cross-cultural Study. [n.p.]: Human Relations Area Files Press, 1970.

MLA (9th ed.) Citation

Otterbein, Keith F. The Evolution of War: A Cross-cultural Study. Human Relations Area Files Press, 1970.