This is by no means the complete bibliography. That will take some time to make it up here, since after all, I have other work to do. But here are at least a few of the references to get you started.
Barthold, W. 1977 [1928] Turkestan down to the Mongol invasion. London: Gibb Memorial Trust.
Bawden, Charles. 1968 "The Mongol rebellion of 1756-1757." Journal of Asian History. 1:1-31.
Bawden, Charles. 1989. The modern history of Mongolia. London: Kegan Paul.
Dawson, Christopher. 1980 [1955] Mission to Asia. Toronto: University of Toronto Press.
Ewing, Thomas E. 1980 Between the hammer and the anvil?: Chinese and Russian policies in Outer Mongolia 1911-1921. Bloomington: Indiana University.
Franke, H. 1981 "Tibetans in Yuan China." in China under Mongol rule. John D. Langlois, ed. pp. 296-328. Princeton: Princeton University Press.
Grousset, Rene. 1970 The empire of the steppes: a history of Central Asia. Naomi Walford, trans. New Brunswick: Rutgers University Press.
Kreuger, John, trans. 1967 The Bejewelled summary of the origin of Khans. Bloomington, IN: The Mongolia Society.
Morgan, David. 1986a. The Mongols. Oxford: Blackwell.
Ratchnevsky, Paul. 1991. Genghis Khan. Oxford: Blackwell.