Columbia subject headings:
Labor unions--Zambia--History.
Working class--Zambia--History.
Harvard subject headings:
Labor movement--Zambia--History.
Labor unions--Zambia--History.
Strikes and lockouts--Zambia--History.
Zambia--History.
Princeton subject headings:
Labor unions--Zambia--History.
Strikes and lockouts--Zambia--History.
Working class--Zambia--History.