Dyfyniad APA

Craig, A. M. (1997). The heritage of world civilizations (4th ed.). Prentice-Hall.

Dyfyniad Arddull Chicago

Craig, Albert M. The Heritage of World Civilizations. 4th ed. NJ: Prentice-Hall, 1997.

Dyfyniad MLA

Craig, Albert M. The Heritage of World Civilizations. 4th ed. Prentice-Hall, 1997.

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.