Columbia subject headings:
Harvard subject headings:
Trieste (Italy)--History, Military.
Weapons--Italy--Trieste.
World War, 1939-1945--Secret service--Italy--Trieste.
Princeton subject headings:
Trieste (Italy)--History, Military.
Weapons--Italy--Trieste.
World War, 1939-1945--Secret service--Italy--Trieste.