Cita APA (7th ed.)

Greaves, R. L., & Zaller, R. (1997). Civilizations of the world: The human adventure. (3rd.ed.). Longman.

Cita Chicago (17th ed.)

Greaves, Richard L., i Robert Zaller. Civilizations of the World: The Human Adventure. 3rd.ed. New York: Longman, 1997.

Cita MLA (9th ed.)

Greaves, Richard L., i Robert Zaller. Civilizations of the World: The Human Adventure. 3rd.ed. Longman, 1997.