APA引文

Duiker, W. J. (2015). Contemporary world history (Sixth edition.). Cengage Learning.

Chicago Style (17th ed.) Citation

Duiker, William J. Contemporary World History. Sixth edition. Stamford, Conn: Cengage Learning, 2015.

MLA引文

Duiker, William J. Contemporary World History. Sixth edition. Cengage Learning, 2015.