APA (7th ed.) Citation

(2011). National Geographic Juli, September-Oktober 2011. s.n.

Chicago Style (17th ed.) Citation

National Geographic Juli, September-Oktober 2011. s.n, 2011.

MLA (8th ed.) Citation

National Geographic Juli, September-Oktober 2011. s.n, 2011.

Warning: These citations may not always be 100% accurate.