APA (7th ed.) Citation

HBO Home Entertainment (Firm), March of Time, Inc, & Van Voorhis, W. (1936). An American dictator. Home Box Office.

Chicago Style (17th ed.) Citation

HBO Home Entertainment (Firm), Inc March of Time, and Westbrook Van Voorhis. An American Dictator. New York, NY: Home Box Office, 1936.

MLA (9th ed.) Citation

HBO Home Entertainment (Firm), et al. An American Dictator. Home Box Office, 1936.