Columbia subject headings:
Labor market--China--Congresses.
Labor mobility--China--Congresses.
Rural-urban migration--China--Congresses.
Harvard subject headings:
Labor market--China--Congresses.
Labor mobility--China--Congresses.
Rural-urban migration--China--Congresses.
Princeton subject headings:
Labor market--China--Congresses.
Labor mobility--China--Congresses.
Rural-urban migration--China--Congresses.