APA (7th ed.) Citation

Findley, C. V., & Rothney, J. A. M. (2011). Twentieth-century world (7th ed.). Wadsworth/Cengage Learning.

Chicago Style (17th ed.) Citation

Findley, Carter V., and John Alexander Murray Rothney. Twentieth-century World. 7th ed. [Singapore]: Wadsworth/Cengage Learning, 2011.

MLA (9th ed.) Citation

Findley, Carter V., and John Alexander Murray Rothney. Twentieth-century World. 7th ed. Wadsworth/Cengage Learning, 2011.