Jackson, Rodney (). „Snow Leopard Survey and Conservation Handbook Part III”(PDF). Snow Leopard Survey and Conservation Handbook. Seattle, Washington, & Fort Collins Science Center, Colorado, US: International Snow Leopard Trust & U.S. Geological Survey. p. 66. Arhivat din original(pdf) la . Accesat în .
Jackson, Rodney (). „Snow Leopard Survey and Conservation Handbook Part III”(PDF). Snow Leopard Survey and Conservation Handbook. Seattle, Washington, & Fort Collins Science Center, Colorado, US: International Snow Leopard Trust & U.S. Geological Survey. p. 66. Arhivat din original(pdf) la . Accesat în .