Jackson, R.; Hunter, D. O. (1996). "Snow Leopard Survey and Conservation Handbook Part III"(PDF). Snow Leopard Survey and Conservation Handbook. Seattle, Washington, & Fort Collins Science Center, Colorado, the United States of America: International Snow Leopard Trust & U.S. Geological Survey. pp. 1–55. Archived from the original(PDF) on 2011-07-28. Retrieved 2009-03-14.
web.archive.org
Jackson, R.; Hunter, D. O. (1996). "Snow Leopard Survey and Conservation Handbook Part III"(PDF). Snow Leopard Survey and Conservation Handbook. Seattle, Washington, & Fort Collins Science Center, Colorado, the United States of America: International Snow Leopard Trust & U.S. Geological Survey. pp. 1–55. Archived from the original(PDF) on 2011-07-28. Retrieved 2009-03-14.