National Geographic Maps (Firm) & National Geographic Society (U.S.). (2006). Soccer unites the world. National Geographic Society.
Chicago Style (17th ed.) CitationNational Geographic Maps (Firm) and National Geographic Society (U.S.). Soccer Unites the World. Washington, D.C.: National Geographic Society, 2006.
MLA (9th ed.) CitationNational Geographic Maps (Firm) and National Geographic Society (U.S.). Soccer Unites the World. National Geographic Society, 2006.
Warning: These citations may not always be 100% accurate.