APA (7th ed.) Citation

National Geographic Society. (1992). The builders: : marvels of engineering. National Geographic.

Chicago Style (17th ed.) Citation

National Geographic Society. The Builders: : Marvels of Engineering. Washington: National Geographic, 1992.

MLA (9th ed.) Citation

National Geographic Society. The Builders: : Marvels of Engineering. National Geographic, 1992.

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