Cita APA (7th ed.)

Churchman, D. (2013). Why we fight: The origins, nature, and management of human conflict (2nd ed.). University Press of America.

Cita Chicago (17th ed.)

Churchman, David. Why We Fight: The Origins, Nature, and Management of Human Conflict. 2nd ed. Lanham, Md.: University Press of America, 2013.

Cita MLA (9th ed.)

Churchman, David. Why We Fight: The Origins, Nature, and Management of Human Conflict. 2nd ed. University Press of America, 2013.