APA(7版)引用形式
Johns, C. (2014). National geographic: The new food revolution. National Geographic.
Chicagoスタイル(17版)引用形式
Johns, Chris. National Geographic: The New Food Revolution. Washington: National Geographic, 2014.
MLA(9版)引用形式
Johns, Chris. National Geographic: The New Food Revolution. National Geographic, 2014.
警告: この引用は必ずしも正確ではありません.