APA (7th ed.) Citation

HBO Home Entertainment (Firm), March of Time, Inc, & Van Voorhis, W. (1941). Our America at war. Home Box Office.

Chicago Style (17th ed.) Citation

HBO Home Entertainment (Firm), Inc March of Time, and Westbrook Van Voorhis. Our America at War. New York, NY: Home Box Office, 1941.

MLA (9th ed.) Citation

HBO Home Entertainment (Firm), et al. Our America at War. Home Box Office, 1941.