Columbia subject headings:
Harvard subject headings:
China--History--Qianlong, 1736-1795.
Gansu Sheng (China)--History.
Muslims--China--History
Ningxia Huizu Zizhiqu (China)--History.
Princeton subject headings:
Gansu Sheng (China)--History--Sources.
Muslims--China--Gansu Sheng--History--Sources.
Muslims--China--Ningxia Huizu Zizhiqu--History--Sources. 650.
Ningxia Huizu Zizhiqu (China)--History--Sources.