Columbia subject headings:
Labor laws and legislation--Tanzania--History.
Labor unions--Law and legislation--Tanzania--History.
Law and socialism--History.
Working class--Tanzania--History.
Harvard subject headings:
Labor laws and legislation--Tanzania--History.
Labor unions--Law and legislation--Tanzania--History.
Law and socialism--History.
Working class--Tanzania--History.
Princeton subject headings:
Labor laws and legislation--Tanzania--History.
Labor unions--Law and legislation--Tanzania--History.
Law and socialism--History.
Working class--Tanzania--History.