Columbia subject headings:
Canada--Census--History--Sources--Bibliography--Catalogs.
Public Archives of Canada--Catalogs.
Statistics Canada--Archives--Catalogs.
Harvard subject headings:
Canada--Census--History--Sources--Bibliography--Catalogs.
Public Archives of Canada--Catalogs.
Statistics Canada--Archives--Catalogs.
Princeton subject headings:
Canada--Census--History--Sources--Bibliography--Catalogs.
Public Archives Canada. Public Records Division--Catalogs.
Statistics Canada--Archives--Catalogs.