एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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