Columbia subject headings:
Labor movement--Canada--History.
Labor--Canada--History.
Working class--Canada--History.
Harvard subject headings:
Labor movement--Canada--Historiography.
Labor movement--Canada--History.
Labor--Canada--Historiography.
Labor--Canada--History.
Working class--Canada--Historiography.
Working class--Canada--History.
Princeton subject headings:
Labor movement--Canada--History.
Labor--Canada--History.
Working class--Canada--History.