Columbia subject headings:
Harvard subject headings:
Labor movement--South Africa--History--20th century.
Socialism--South Africa--20th century.
Socialism--South Africa--History--20th century.
South Africa--Politics and government--20th century.
Princeton subject headings:
Labor movement--South Africa--History--20th century.
Socialism--South Africa--History--20th century.
South Africa--Politics and government--20th century.