Columbia subject headings:
Airports--New Jersey.
Airports--New York (State)--New York.
New York Metropolitan Area--Economic conditions.
Harvard subject headings:
Airports--New Jersey.
Airports--New York (State)--New York.
New York Metropolitan Area--Economic conditions.
Princeton subject headings:
Airports--New Jersey.
Airports--New York (State)--New York.
New York Metropolitan Area--Economic conditions.