APA (7th ed.) Citation

Films for the Humanities (Firm), Natural History New Zealand Ltd, & Discovery Health Channel. (2004). Pregnancy: A history. Films for the Humanities & Sciences.

Chicago Style (17th ed.) Citation

Films for the Humanities (Firm), Natural History New Zealand Ltd, and Discovery Health Channel. Pregnancy: A History. Princeton, NJ: Films for the Humanities & Sciences, 2004.

MLA (9th ed.) Citation

Films for the Humanities (Firm), et al. Pregnancy: A History. Films for the Humanities & Sciences, 2004.