1. Schaller, G. B. An Illegal trade in Tibet, Wildlife Conservation Society – Hotline, May/June 1993. Cited In: Wright B and Kumar A, editors. Fashioned for extinction. Thapar House, 124 Janpath, New Delhi, India, 1997; 7–8.
2. Anon. In litt. To George Schaller, 12 February 1992. Cited In: Wright B and Kumar A, editors. Fashioned for extinction. Thapar House, 124 Janpath, New Delhi, India, 1997; 7–8.
3. Wong H. Distress Message From A Nature Reserve, Field Report, Dunhang, China, 14 Oct 1993. Cited In: Wright B and Kumar A, editors. Fashioned for extinction. Thapar House, 124 Janpath, New Delhi, India, 1997; 7–8.
4. Schaller GB. In litt to Ashok Kumar, Wildlife Protection Society of India, 23 March 1995. Cited In: Wright B and Kumar A, editors. Fashioned for extinction. Thapar House, 124 Janpath, New Delhi, India, 1997; 7–8.
5. Schaller GB. In litt to Belinda Wright, Wildlife Protection Society Of India, 28 July 1997. Cited In: Wright B and Kumar A, editors. Fashioned for extinction. Thapar House, 124 Janpath, New Delhi, India, 1997; 7–8.