1. G.E. Clarke, ‘Research Design in the Use of China’s Census and Survey Data for Rural Areas and Households’, in E. Vermeer (ed.), From Peasant to Entrepreneur: Growth and Change in Rural China, ( Wageningen: Pudoc, 1982 ), pp. 217–40.
2. D. Morgan, The Mongols, ( Oxford: Blackwell, 1986 ).
3. Chen Guangguo and Wang Haoxun, ‘The Relationship between Mongolians and Tibetans during the Periods of the Ming and Chinese Dynasties and the Policy of the Central Chinese Government towards Mongolia and Tibet’, China Tibetology, 1 (1989) 89–101.
4. E. Teichman, Travels of a Consular Officer in East Tibet, (Cambridge University Press, 1922), and H.J. Wiens, Han Chinese Expansion in South China, ( Hamden, Conn.: Archon Books/ Shoe String Press, 1967 ), p. 192.
5. J.D. Durand, ‘The Population Statistics of China’, Population Studies, XIII (1960) 209–57.