Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

McWilliams, Wayne C., y Harry Piotrowski. The World Since 1945: A History of International Relations. 7th ed. Boulder [etc.]: Lynne Rienner, 2009.

Cita MLA (9a ed.)

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