APA (7th ed.) Citation

Johnson, O. A., & Halverson, J. L. (2004). Sources of world civilization. Prentice Hall.

Chicago Style (17th ed.) Citation

Johnson, Oliver A., and James L. Halverson. Sources of World Civilization. Upper Saddle River, New Jersey: Prentice Hall, 2004.

MLA (9th ed.) Citation

Johnson, Oliver A., and James L. Halverson. Sources of World Civilization. Prentice Hall, 2004.