APA (7th ed.) Citation

HBO Home Entertainment (Firm), March of Time, Inc, & Van Voorhis, W. (1938). Men of medicine. Home Box Office.

Chicago Style (17th ed.) Citation

HBO Home Entertainment (Firm), Inc March of Time, and Westbrook Van Voorhis. Men of Medicine. New York, NY: Home Box Office, 1938.

MLA (9th ed.) Citation

HBO Home Entertainment (Firm), et al. Men of Medicine. Home Box Office, 1938.