Columbia subject headings:
Harvard subject headings:
Adriatic Sea Region--Commerce.
Adriatic Sea Region--History.
Commerce--History--Medieval, 500-1500
Marche (Italy)--Commerce--History.
Zdekauer, Lodovico, 1855-1924.
Princeton subject headings:
Fairs--Italy--Marche--Historiography.
Marche (Italy)--Commerce--Historiography.
Markets--Italy--Marche--Historiography.
Zdekauer, Lodovico, 1855-1924.