APA引文

(2004). National geographic: Chasing tornadoes a tale of science guts, and luck. Washington, DC: National Geographic Society.

Trích dẫn kiểu Chicago

National Geographic: Chasing Tornadoes a Tale of Science Guts, and Luck. Washington, DC: National Geographic Society, 2004.

MLA引文

National Geographic: Chasing Tornadoes a Tale of Science Guts, and Luck. Washington, DC: National Geographic Society, 2004.

警告：這些引文格式不一定是100％准確.