Lean, Geoffrey. Our Planet : Climate Change and the Cryosphere. Nairobi, Kenya. UNT Digital Library. http://digital.library.unt.edu/ark:/67531/metadc28526/. Accessed September 1, 2014.
Note: Inconsistencies in capitalization and punctuation within the Digital Library may affect this citation. Before using this citation in formal writing, please consult your preferred style manual. More information.