Columbia subject headings:
Harvard subject headings:
Slovenia--Commerce--History.
Trentino-Alto Adige (Italy)--Commerce--History.
Tyrol (Austria)--Commerce--History.
Princeton subject headings:
Friuli (Italy)--Commerce--History--Congresses.
Trentino-Alto Adige (Italy)--Commerce--History--Congresses.
Veneto (Italy)--Commerce--History--Congresses.