Cita APA

Black, C., & Helmreich, E. (1999). The nazi-Soviet pact and outbreak of war. The rise of Nazi Germany.

Citación estilo Chicago

Black, C.E, y E.C Helmreich. "The Nazi-Soviet Pact and Outbreak of War." The Rise of Nazi Germany 1999.

Cita MLA

Black, C.E, y E.C Helmreich. "The Nazi-Soviet Pact and Outbreak of War." The Rise of Nazi Germany, 1999.