Cita APA (7th ed.)

Duiker, W. J., & Spielvogel, J. J. (2014). The essential world history: Volume II : since 1500 (Seventh edition.). Wadsworth/Cengage Learning.

Cita Chicago (17th ed.)

Duiker, William J., i Jackson J. Spielvogel. The Essential World History: Volume II : Since 1500. Seventh edition. Australia: Wadsworth/Cengage Learning, 2014.

Cita MLA (9th ed.)

Duiker, William J., i Jackson J. Spielvogel. The Essential World History: Volume II : Since 1500. Seventh edition. Wadsworth/Cengage Learning, 2014.