APA (7th ed.) Citation

Geographic, N. (2010). Buracos azuis. National Geographic.

Chicago Style (17th ed.) Citation

Geographic, National. Buracos Azuis. National Geographic, 2010.

MLA (8th ed.) Citation

Geographic, National. Buracos Azuis. National Geographic, 2010.

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