Citazione Stile APA (7a Edizione)

Ralph, P. L., Burns, E. M., Lerner, R. E., & Meacham, S. (1973). Western civilizations: Their history and their culture (8. ed.). Norton.

Citazione stile Chigago Style (17a edizione)

Ralph, Philip L., Edward McNall Burns, Robert E. Lerner, e Standish Meacham. Western Civilizations: Their History and Their Culture. 8. ed. New York: Norton, 1973.

Citatione MLA (9a ed.)

Ralph, Philip L., et al. Western Civilizations: Their History and Their Culture. 8. ed. Norton, 1973.