APA
(2002). The Inca [Map]. Washington, D.C: National Geographic Maps for National Geographic Magazine.
Chicago
2002. The Inca [Map]. Washington, D.C: National Geographic Maps for National Geographic Magazine.
Harvard
(2002). The Inca [Map]. Washington, D.C: National Geographic Maps for National Geographic Magazine.
MLA
The Inca [Map]. Washington, D.C: National Geographic Maps for National Geographic Magazine. 2002.