Columbia subject headings:
Aeronautics, Commercial--New York Metropolitan Area--Statistics--Periodicals.
Airlines--New York Metropolitan Area--Statistics--Periodicals.
Airports--New Jersey--Statistics--Periodicals.
Airports--New York Metropolitan Area--Statistics--Periodicals.
Heliports--New York (State)--New York--Statistics--Periodicals.
Newark International Airport--Statistics--Periodicals.
Teterboro Airport--Statistics--Periodicals.
Harvard subject headings:
Princeton subject headings:
Aeronautics, Commercial--New York Metropolitan Area--Statistics--Periodicals.
Periodicals.
Statistics.