APA
Blum R. C. (., Stone E. (. & Blum R. C. (. (2006). Himalaya. Washington: National Geographical Society of India.
Chicago
Blum Richard C (ed), Stone Erica (Ed) and Blum Richard C (ed). 2006. Himalaya. Washington: National Geographical Society of India.
Harvard
Blum R. C. (., Stone E. (. and Blum R. C. (. (2006). Himalaya. Washington: National Geographical Society of India.
MLA
Blum Richard C (ed), Stone Erica (Ed) and Blum Richard C (ed). Himalaya. Washington: National Geographical Society of India. 2006.