APA (7th ed.) Citation

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

Chicago Style (17th ed.) Citation

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

MLA (8th ed.) Citation

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