Cita APA (7a ed.)
Greaves, R. L., & Zaller, R. (1997). Civilizations of the world: The human adventure. (3rd.ed.). Longman.
Cita Chicago Style (17a ed.)
Greaves, Richard L., y Robert Zaller. Civilizations of the World: The Human Adventure. 3rd.ed. New York: Longman, 1997.
Cita MLA (9a ed.)
Greaves, Richard L., y Robert Zaller. Civilizations of the World: The Human Adventure. 3rd.ed. Longman, 1997.
Precaución: Estas citas no son 100% exactas.