APA (7th ed.) Citation

Ehrenberg, R. E. (2006). Mapping the world. National Geographic Society.

Chicago Style (17th ed.) Citation

Ehrenberg, Ralph E. Mapping the World. Washington: National Geographic Society, 2006.

MLA (9th ed.) Citation

Ehrenberg, Ralph E. Mapping the World. National Geographic Society, 2006.

Warning: These citations may not always be 100% accurate.