APA (7th ed.) Citation

Salak, K. (2001). Four corners: A journey into the heart of Papua New Guinea. National Geographic Society.

Chicago Style (17th ed.) Citation

Salak, Kira. Four Corners: A Journey into the Heart of Papua New Guinea. Washington: National Geographic Society, 2001.

MLA (9th ed.) Citation

Salak, Kira. Four Corners: A Journey into the Heart of Papua New Guinea. National Geographic Society, 2001.

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