Columbia subject headings:
Harvard subject headings:
China--History--Xi Xia dynasty, 1038-1227.
Law--China--Gansu Sheng--Sources.
Law--China--Shanxi Sheng--Sources.
Minorities--Legal status, laws, etc.--China
Tangut (Chinese people)
Princeton subject headings:
China--History--Xi Xia dynasty, 1038-1227.
Law--China, Noethwest--Sources.
Law--China--Gansu Sheng--Sources.
Law--China--Shaanxi Sheng--Sources.
Tangut (Chinese people)--Legal status, laws, etc.