APA引文

Helfand, L. (2016). They changed the world. Campfire.

Chicago Style (17th ed.) Citation

Helfand, Lewis. They Changed the World. New Delhi, India: Campfire, 2016.

MLA引文

Helfand, Lewis. They Changed the World. Campfire, 2016.

警告：這些引文格式不一定是100％准確.