Columbia subject headings:
China--History--Ming dynasty, 1368-1644.
China--History--Qing dynasty, 1644-1912.
Economic development--China--Shaanxi Sheng--History.
Economic development--China--Sichuan Sheng--History.
Migration, Internal--China--History.
Shaanxi Sheng (China)--Economic conditions.
Sichuan Sheng (China)--Economic conditions.
Harvard subject headings:
Princeton subject headings:
China--History--Ming dynasty, 1368-1644.
China--History--Qing dynasty, 1644-1912.
Economic development--China--Shaanxi Sheng--History.
Economic development--China--Sichuan Sheng--History.
Migration, Internal--China--History.
Shaanxi Sheng (China)--Economic conditions--History.
Sichuan Sheng (China)--Economic conditions--History.