Columbia subject headings:
Harvard subject headings:
Foreign workers--Germany (West)--History
Foreign workers--Great Britain--History--20th century.
Germany (West)--Emigration and immigration--Government policy--History
Great Britain--Emigration and immigration--Government policy--History--20th century.
Labor unions--Germany (West)--History
Labor unions--Great Britain--History--20th century.
Princeton subject headings:
Employees--Recruiting--Germany--History--20th century.
Employees--Recruiting--Great Britain--History--20th century.
Foreign workers--Germany.
Foreign workers--Great Britain.
Labor migration--Germany.
Labor migration--Great Britain.
Social integration--Germany.
Social integration--Great Britain.