APA (7th ed.) Citation

HBO Home Entertainment (Firm), March of Time, Inc, & Van Voorhis, W. (1940). The Vatican of Pius XII. Home Box Office.

Chicago Style (17th ed.) Citation

HBO Home Entertainment (Firm), Inc March of Time, and Westbrook Van Voorhis. The Vatican of Pius XII. New York, NY: Home Box Office, 1940.

MLA (9th ed.) Citation

HBO Home Entertainment (Firm), et al. The Vatican of Pius XII. Home Box Office, 1940.