Columbia subject headings:
Bridges--Design and construction.
Bridges--Italy--Messina, Strait of--Design and construction.
Messina, Strait of (Italy)--History.
Harvard subject headings:
Bridges--Design and construction
Bridges--Italy--Messina, Strait of--Design and construction.
Messina, Strait of (Italy)--History.
Princeton subject headings:
Bridges--Design and construction.
Bridges--Italy--Messina, Strait of--Design and construction.
Messina, Strait of (Italy)--History.