Columbia subject headings:
Bridges--New Jersey--Periodicals.
Bridges--New York (State)--New York--Periodicals.
Tunnels--Hudson River (N.Y. and N.J.)--Periodicals.
Harvard subject headings:
Bridges--New Jersey--Periodicals.
Bridges--New York (State)--New York--Periodicals.
Tunnels--Hudson River (N.Y. and N.J.)--Periodicals.
Princeton subject headings:
Bridges--New Jersey--Periodicals.
Bridges--New York (State)--New York--Periodicals.
Tunnels--Hudson River--Periodicals.