APA (7th ed.) Citation

Somerville, C., & Wright, A. (2011). National Geographic traveler: Great Britain (Third edition.). National Geographic Society.

Chicago Style (17th ed.) Citation

Somerville, Christopher, and Alison Wright. National Geographic Traveler: Great Britain. Third edition. Washington, D.C: National Geographic Society, 2011.

MLA (9th ed.) Citation

Somerville, Christopher, and Alison Wright. National Geographic Traveler: Great Britain. Third edition. National Geographic Society, 2011.