APA (7th ed.) Citation

Trigger, B. G. (2003). Understanding early civilizations: A comparative study. Cambridge University Press.

Chicago Style (17th ed.) Citation

Trigger, Bruce G. Understanding Early Civilizations: A Comparative Study. New York: Cambridge University Press, 2003.

MLA (9th ed.) Citation

Trigger, Bruce G. Understanding Early Civilizations: A Comparative Study. Cambridge University Press, 2003.