APA (7th ed.) Citation
Grosvenor, M. B. National Geographic: Vol. 138, no. 4, October 1970. National Geographic Society.
Chicago Style (17th ed.) Citation
Grosvenor, Melville Bell. National Geographic: Vol. 138, No. 4, October 1970. Washington, EUA: National Geographic Society.
MLA (9th ed.) Citation
Grosvenor, Melville Bell. National Geographic: Vol. 138, No. 4, October 1970. National Geographic Society.
Warning: These citations may not always be 100% accurate.