APA (7th ed.) Citation

National Geographic Society (U.S.) & Vivendi Entertainment (Firm). (2013). American presidents. Vivendi Entertainment.

Chicago Style (17th ed.) Citation

National Geographic Society (U.S.) and Vivendi Entertainment (Firm). American Presidents. Universal City, CA: Vivendi Entertainment, 2013.

MLA (8th ed.) Citation

National Geographic Society (U.S.) and Vivendi Entertainment (Firm). American Presidents. Vivendi Entertainment, 2013.