Columbia subject headings:
Agricultural laborers--China--Social conditions.
China--Social conditions--2000-
Migrant agricultural laborers--China--Social conditions.
Harvard subject headings:
Agricultural laborers--China--Social conditions.
Labor mobility--China.
Rural-urban migration--China
Social structure--China.
Princeton subject headings:
Agricultural laborers--China--Social conditions.
China--Social conditions--2000-
Migrant agricultural laborers--China--Social conditions.