APA (7th ed.) Citation

Duiker, W. J. (2015). Contemporary world history (6th ed.). Cengage Learning.

Chicago Style (17th ed.) Citation

Duiker, William J. Contemporary World History. 6th ed. Stamford, Connecticut: Cengage Learning, 2015.

MLA (9th ed.) Citation

Duiker, William J. Contemporary World History. 6th ed. Cengage Learning, 2015.