APA (7th ed.) Citation

National Geographic Society (U.S.) & Belt, D. (2001). The World of Islam. National Geographic Society.

Chicago Style (17th ed.) Citation

National Geographic Society (U.S.) and Don Belt. The World of Islam. Washington, D.C.: National Geographic Society, 2001.

MLA (9th ed.) Citation

National Geographic Society (U.S.) and Don Belt. The World of Islam. National Geographic Society, 2001.

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