Columbia subject headings:
Harvard subject headings:
Italy--Commerce--History--Congresses.
Markets--Italy--History--Congresses.
Physical distribution of goods--Italy--History--Congresses.
Transportation--Italy--History--Congresses.
Princeton subject headings:
Italy--Commerce--History--Congresses.
Markets--Italy--History--Congresses.
Physical distribution of goods--Italy--History--Congresses.
Transportation--Italy--History--Congresses.