Columbia subject headings:
Harvard subject headings:
Canada--History, Local--Audio-visual aids--Catalogs.
Canada--History, Local--Bibliography.
Canada--History, Local--Societies, etc.--Directories.
Historic sites--Canada--Guidebooks.
Historic sites--United States--Guidebooks
Historical museums--Canada--Guidebooks.
Historical museums--United States--Guidebooks.
United States--History, Local--Audio-visual aids--Catalogs.
United States--History, Local--Bibliography.
United States--History, Local--Societies, etc.--Directories.
Princeton subject headings:
Canada--History, Local--Audio-visual aids--Catalogs.
Canada--History, Local--Bibliography.
Canada--History, Local--Societies, etc.--Directories.
Guidebooks.
Historic sites--Canada--Guidebooks.
Historic sites--United States--Guidebooks.
Historical museums--Canada--Guidebooks.
Historical museums--United States--Guidebooks.
United States--History, Local--Audio-visual aids--Catalogs.
United States--History, Local--Bibliography.
United States--History, Local--Societies, etc.--Directories.