Cita APA (7a ed.)
Burns, E. M., Lerner, R. E., & Ralph, P. L. (1986). World civilizations: Their history and their culture (7th ed.). W.W. Norton & Co..
Cita Chicago Style (17a ed.)
Burns, Edward McNall, Robert E. Lerner, y Philip Lee Ralph. World Civilizations: Their History and Their Culture. 7th ed. New York: W.W. Norton & Co., 1986.
Cita MLA (9a ed.)
Burns, Edward McNall, et al. World Civilizations: Their History and Their Culture. 7th ed. W.W. Norton & Co., 1986.
Precaución: Estas citas no son 100% exactas.