Columbia subject headings:
Gansu Sheng (China)
Ningxia Huizu Zizhiqu (China)
Shaanxi Sheng (China)
Shan Gan Ning Bian Qu (China)
Harvard subject headings:
Shan Gan Ning Bian Qu (China)
Sino-Japanese War, 1937-1945--China, Northwest.
Princeton subject headings: