Cita APA (7a ed.)

Otterbein, K. F. (1989). The evolution of war: A cross-cultural study (3rd ed.). HRAF.

Cita Chicago Style (17a ed.)

Otterbein, Keith F. The Evolution of War: A Cross-cultural Study. 3rd ed. New Haven: HRAF, 1989.

Cita MLA (9a ed.)

Otterbein, Keith F. The Evolution of War: A Cross-cultural Study. 3rd ed. HRAF, 1989.