National Geographic Book Service. (1988). Inventors and discoverers: Changing our world. National Geographic Society.
Chicago Style (17th ed.) CitationNational Geographic Book Service. Inventors and Discoverers: Changing Our World. Washington, D.C: National Geographic Society, 1988.
MLA (9th ed.) CitationNational Geographic Book Service. Inventors and Discoverers: Changing Our World. National Geographic Society, 1988.
Warning: These citations may not always be 100% accurate.