Columbia subject headings:
National Gallery (Great Britain)--Guidebooks.
Painting--England--London--Guidebooks.
Harvard subject headings:
National Gallery (Great Britain)--Catalogs.
National Gallery (Great Britain)--Guidebooks.
Painting--England--London--Catalogs
Painting--England--London--Guidebooks.
Princeton subject headings:
Catalogs.
National Gallery (Great Britain)--Catalogs.
Painting--England--London--Catalogs.