Cita APA (7a ed.)

Best, A., & Best, A. . .. (2004). International history of the twentieth century. Routledge.

Cita Chicago Style (17a ed.)

Best, Antony, y Antony Best. International History of the Twentieth Century. London: Routledge, 2004.

Cita MLA (9a ed.)

Best, Antony, y Antony Best. International History of the Twentieth Century. Routledge, 2004.