Columbia subject headings:
China--History--Yuan dynasty, 1260-1368.
Law--China--History.
Law--China--Sources.
Harvard subject headings:
China--History--Yuan dynasty, 1260-1368--Sources.
Law--China--History
Law--China--Sources
Princeton subject headings:
China--History--Yuan dynasty, 1260-1368.
Law--China--History.
Law--China--Sources.