APA(7版)引用形式
Grosvenor, M. B. National geographic: May 1972. National Geographic Society.
Chicagoスタイル(17版)引用形式
Grosvenor, Melville Bell. National Geographic: May 1972. Washington, EUA: National Geographic Society.
MLA(9版)引用形式
Grosvenor, Melville Bell. National Geographic: May 1972. National Geographic Society.
警告: この引用は必ずしも正確ではありません.