National Geographic Television, National Geographic Society (U.S.), Public Broadcasting Service (U.S.), Clark, L., & Effros, J. (2009). Secrets of Shangri-La: Quest for sacred caves. NGHT.
Style de citation Chicago (17e éd.)National Geographic Television, National Geographic Society (U.S.), Public Broadcasting Service (U.S.), Liesl Clark, et Jamie Effros. Secrets of Shangri-La: Quest for Sacred Caves. Washington, D.C.: NGHT, 2009.
Style de citation MLA (8e éd.)National Geographic Television, et al. Secrets of Shangri-La: Quest for Sacred Caves. NGHT, 2009.
Attention : ces citations peuvent ne pas être correctes à 100%.