APA aipamena

Cohen, M. N. (1989). Health and the rise of civilization. Yale University Press.

Chicago Style aipamena

Cohen, Mark Nathan. Health and the Rise of Civilization. New Haven: Yale University Press, 1989.

MLA aipamena

Cohen, Mark Nathan. Health and the Rise of Civilization. Yale University Press, 1989.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.