Columbia subject headings:
Balkan Peninsula--Commerce--Italy.
Balkan Peninsula--Commerce--Statistics.
Balkan Peninsula--Economic conditions.
Balkan Peninsula--Economic policy.
Harvard subject headings:
Balkan Peninsula--Commerce--Italy.
Balkan Peninsula--Commerce--Statistics.
Balkan Peninsula--Economic conditions.
Balkan Peninsula--Economic policy.
Princeton subject headings:
Balkan Peninsula--Commerce--Italy.
Balkan Peninsula--Economic policy.
Italy--Commerce--Balkan Peninsula.