Columbia subject headings:
Harvard subject headings:
Aeronautics, Commercial--New Jersey--Newark--Freight.
Aeronautics, Commercial--New York (State)--New York--Freight.
Aeronautics, Commercial--United States--Freight
Princeton subject headings:
Aeronautics, Commercial--New Jersey--Newark--Freight.
Aeronautics, Commercial--New York--Newark--Freight.
Aeronautics, Commercial--United States--Freight.