Παραπομπή APA

Albert M Craig & William A Graham. (1994). The heritage of world civilization (3rd.). Macmillan.

Παραπομπή Chicago Style

Albert M Craig και William A Graham. The Heritage of World Civilization. 3rd. New York: Macmillan, 1994.

Παραπομπή MLA

Albert M Craig και William A Graham. The Heritage of World Civilization. 3rd. Macmillan, 1994.