APA (7th ed.) Citation

Bryan, C. D. B. (1994). The National Geographic Society: 100 years of adventure and discovery. Harry N. Abrams.

Chicago Style (17th ed.) Citation

Bryan, C. D. B. The National Geographic Society: 100 Years of Adventure and Discovery. New York: Harry N. Abrams, 1994.

MLA (9th ed.) Citation

Bryan, C. D. B. The National Geographic Society: 100 Years of Adventure and Discovery. Harry N. Abrams, 1994.

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