APA (7th ed.) Citation

Duiker, W. J. (2021). Contemporary world history (seventh edition.). Cengage.

Chicago Style (17th ed.) Citation

Duiker, William J. Contemporary World History. seventh edition. Boston: Cengage, 2021.

MLA (9th ed.) Citation

Duiker, William J. Contemporary World History. seventh edition. Cengage, 2021.

Warning: These citations may not always be 100% accurate.