|
Jackson, R. (1991). A wildlife survey of the Qomolangma Nature Preserve, Tibetian Autonomous Region, Peoples Republic of China. Franklin, West Virginia: Woodlands Mountain Institute.
|
|
|
Jackson, R. (1991). Snow Leopards and Other Wildlife in the Qomolang,a Nature Preserve of Tibet (Vol. ix). Seattle: International Snow Leopard Trust.
|
|
|
Fox, J. L., Nurbu, C., & Chundawat, R. S. (1991). Tibetian Argali (Ovis ammon hodgsoni). Mammalia, , 48–51.
|
|
|
Yuan, G. (1991). Vertebrates fauna Xinjiang. Urumqi: Xinjiang People's Press.
|
|