Columbia subject headings:
Harvard subject headings:
Ningxia Huizu Zizhiqu (China)--Description and travel.
Ningxia Huizu Zizhiqu (China)--Social life and customs.
Princeton subject headings:
Ningxia Huizu Zizhiqu (China)--Description and travel.
Ningxia Huizu Zizhiqu (China)--Social life and customs.