APA (7th ed.) Citation

Cannon, M., Jones-Nerzic, R., & Keys, D. (2009). 20th century world history. Course companion: IB diploma programme. Oxford University Press.

Chicago Style (17th ed.) Citation

Cannon, Martin, Richard Jones-Nerzic, and David Keys. 20th Century World History. Course Companion: IB Diploma Programme. [Place of publication not identified]: Oxford University Press, 2009.

MLA (9th ed.) Citation

Cannon, Martin, et al. 20th Century World History. Course Companion: IB Diploma Programme. Oxford University Press, 2009.