Cita APA (7th ed.)
National Geographic Society. (2004). Atlas National Geographic (1a. ed.).
Cita Chicago (17th ed.)
National Geographic Society. Atlas National Geographic. 1a. ed. 2004.
Cita MLA (9th ed.)
National Geographic Society. Atlas National Geographic. 1a. ed. 2004.
Atenció: Aquestes cites poden no estar 100% correctes.