Columbia subject headings:
Harvard subject headings:
China--History--Song dynasty, 960-1279.
Statesmen--China--Biography.
Wen, Tʻien-hsiang, 1236-1282.
Princeton subject headings:
Authors, Chinese--Biography.
Statesmen--China--Biography.
Wen, Tʻien-hsiang, 1236-1282--Biography.