Columbia subject headings:
Harvard subject headings:
Canada--Economic conditions--1918-1945.
Depressions--1929--Canada
Labor camps--Canada--History.
Labor camps--Canada.
Labor policy--Canada--History.
Unemployed--Canada--History.
Unemployment--Canada--History.
Working class--Canada--Political activity--History.
Princeton subject headings:
Canada--Economic conditions--1918-.
Depressions--1929--Canada.
Labor camps--Canada.
Unemployed--Canada--History.