APA (7th ed.) Citation

McWilliams, W. C., & Piotrowski, H. (2009). The world since 1945: A history of international relations (7. ed.). Rienner.

Chicago Style (17th ed.) Citation

McWilliams, Wayne C., and Harry Piotrowski. The World Since 1945: A History of International Relations. 7. ed. Boulder, Colo. [u.a.]: Rienner, 2009.

MLA (9th ed.) Citation

McWilliams, Wayne C., and Harry Piotrowski. The World Since 1945: A History of International Relations. 7. ed. Rienner, 2009.