Columbia subject headings:
Architecture--New York (State)--New York--Directories.
Office buildings--New York (State)--New York--Directories.
Offices--Location--New York (State)--New York.
Harvard subject headings:
Manhattan (New York, N.Y.)
Office buildings--New York (State)--New York--Directories.
Offices--Location--New York (State)--New York
Princeton subject headings: