Columbia subject headings:
Harvard subject headings:
China--History--Song dynasty, 960-1279.
China--Social conditions--960-1644.
Historians--China--Biography
Zhang, Jiaju, 1914-1974.
Princeton subject headings:
China--History--Song dynasty, 960-1279.
China--Social conditions--960-1644.
Historians--China--Biography.
Zhang, Jiaju, 1914-1974.