Columbia subject headings:
Contracts--Industrial--New York (State)--New York.
Contracts--Industries--New York (State)--New York.
Local transit--New York (State)--New York.
Harvard subject headings:
Contracts--Industrial--New York (State)--New York.
Local transit--New York (State)--New York
Princeton subject headings:
Contracts--Industrial--New York (State)--New York.
Local transit--New York (State)--New York.