Columbia subject headings:
Architecture--Conservation and restoration--New York (State)--New York.
Architecture--New York (State)--New York--Guidebooks.
Building, Iron and steel.
Cast-iron fronts (Architecture)--New York (State)--New York.
SoHo-Cast Iron Historic District (New York, N.Y.)
Harvard subject headings:
Architecture--New York (State)--New York--Guidebooks
Historic buildings--New York (State)--New York--Inventories.
New York (N.Y.)--Buildings, structures, etc.--Conservation and restoration.
SoHo (New York, N.Y.)--Buildings, structures, etc.
Princeton subject headings: