McGovern, William M.
The early empires of central Asia : a study of the Scythians and the Huns and the part they played in world history with special reference to the Chinese sources
University of North Carolina Press, 1939
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Wheeler, Geoffrey
Racial problems in Soviet Muslim Asia / Geoffrey Wheeler
Oxford University Press, 1962
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Lattimore, Owen, 1900-
Studies in frontier history : collected papers 1928-1958
Mouton, 1962
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Asian peoples and their cultures: continuity and change / edited by Sang-Bok Han
Seoul National University Press, 1986
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Trippett, Frank
The first horsemen
Time-Life Books, 1974
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