Columbia subject headings:
Harvard subject headings:
Trieste (Free Territory)--History.
Trieste (Italy)--History--1918-
Trieste (Italy)--History--20th century.
Trieste (Italy)--History.
Princeton subject headings:
Trieste (Italy)--Civilization.
Trieste (Italy)--History--Chronology.
Trieste (Italy)--Pictorial works.