Παραπομπή APA

Christopher Scarre & Brian M Fagan. (1997). Ancient Civilizations. Longman.

Παραπομπή Chicago Style

Christopher Scarre και Brian M Fagan. Ancient Civilizations. New York: Longman, 1997.

Παραπομπή MLA

Christopher Scarre και Brian M Fagan. Ancient Civilizations. Longman, 1997.