De Weerdt, H. 2007. Pamela Kyle Crossley, Helen F. Siu, and Donald S. Sutton, eds. Empire at the Margins: Culture, Ethnicity, and Frontier in Early Modern China. World History Connected. 4, 2 (Feb. 2007). DOI:https://doi.org/10.13021/whc.v4i2.5005.