APA استشهاد

Howel, S. E., & Willis, R. E. (1989). Societies at peace: Anthropological perspectives.

استشهاد بنمط شيكاغو

Howel, Signe; Ed, و Roy; Ed Willis. Societies at Peace: Anthropological Perspectives. London, Routledge, 1989.

MLA استشهاد

Howel, Signe; Ed, و Roy; Ed Willis. Societies at Peace: Anthropological Perspectives. 1989.