Columbia subject headings:
Labor movement--Canada--History--20th century.
Working class--Canada--History--20th century.
Harvard subject headings:
Labor disputes--Canada--History--20th century.
Labor movement--Canada--History--20th century.
Strikes and lockouts--Canada--History--20th century.
Working class--Canada--History--20th century.
Princeton subject headings:
Labor disputes--Canada--History--20th century.
Labor movement--Canada--History--20th century.
Strikes and lockouts--Canada--History--20th century.
Working class--Canada--History--20th century.