(1999). National geographic's how things work: Everyday technology explained. National Geographic Society.
Chicago Style (17th ed.) CitationNational Geographic's How Things Work: Everyday Technology Explained. Washington, DC: National Geographic Society, 1999.
MLA (9th ed.) CitationNational Geographic's How Things Work: Everyday Technology Explained. National Geographic Society, 1999.
Warning: These citations may not always be 100% accurate.