APA (7th ed.) Citation

Gellately, R., & Hitler, A. (2003). Hitler established a system of police terror. The rise of Adolf Hitler.

Chicago Style (17th ed.) Citation

Gellately, Robert, and Adolf Hitler. "Hitler Established a System of Police Terror." The Rise of Adolf Hitler 2003.

MLA (8th ed.) Citation

Gellately, Robert, and Adolf Hitler. "Hitler Established a System of Police Terror." The Rise of Adolf Hitler, 2003.

Warning: These citations may not always be 100% accurate.