Columbia subject headings:
Beijing (China)--Economic conditions.
Beijing (China)--Social conditions.
China--History--Ming dynasty, 1368-1644.
Harvard subject headings:
Beijing (China)--Economic conditions.
Beijing (China)--Social conditions.
China--History--Ming dynasty, 1368-1644.
Princeton subject headings:
Beijing (China)--Economic conditions.
Beijing (China)--Social conditions.
China--History--Ming dynasty, 1368-1644.