Cita APA (7a ed.)

Weitz, J., & Wolfe, T. (1997). Joachim von Ribbentrop: Hitler's diplomat. Poenix Giant.

Cita Chicago Style (17a ed.)

Weitz, John, y Tom Wolfe. Joachim Von Ribbentrop: Hitler's Diplomat. London: Poenix Giant, 1997.

Cita MLA (9a ed.)

Weitz, John, y Tom Wolfe. Joachim Von Ribbentrop: Hitler's Diplomat. Poenix Giant, 1997.