Columbia subject headings:
Architecture--Ontario--Toronto--History.
Buildings--Ontario--Toronto.
Toronto (Ont.)--Buildings, structures, etc.
Harvard subject headings:
Architecture--Ontario--Toronto--History.
Buildings--Ontario--Toronto.
Toronto (Ont.)--Buildings, structures, etc.
Princeton subject headings:
Architecture--Ontario--Toronto--History.
Buildings--Ontario--Toronto.
Toronto (Ont.)--Buildings, structures, etc.