Columbia subject headings:
Canada--Economic conditions--1918-1945.
Canada--Politics and government--1914-
Canada--Social conditions.
Harvard subject headings:
Canada--Economic conditions--1918-1945.
Canada--Politics and government--1914-
Canada--Social conditions.
Princeton subject headings:
Canada--Economic conditions--1918-1945.
Canada--Politics and government--1914-
Canada--Social conditions.