APA-referens

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

Chicago-stil citat

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

MLA-referens

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

Varning: dessa hänvisningar är inte alltid fullständigt riktiga.