Cita APA (7th ed.)
National Geographic Society (U.S.). (2008). Concise atlas of the world (2nd ed.). National Geographic.
Cita Chicago (17th ed.)
National Geographic Society (U.S.). Concise Atlas of the World. 2nd ed. Washington, DC: National Geographic, 2008.
Cita MLA (9th ed.)
National Geographic Society (U.S.). Concise Atlas of the World. 2nd ed. National Geographic, 2008.
Atenció: Aquestes cites poden no estar 100% correctes.