Columbia subject headings:
Bologna (Italy)--Commerce--History.
Commerce--History--Medieval, 500-1500.
Guilds--Italy--Bologna--History.
Palazzo della Mercanzia (Bologna, Italy)
Harvard subject headings:
Bologna (Italy)--Buildings, structures, etc.
Commercial buildings--Italy--Bologna--History.
Palazzo della Mercanzia (Bologna, Italy)
Princeton subject headings:
Bologna (Italy)--Commerce.
Bologna (Italy)--Economic conditions.
Guilds--Italy--Bologna--History.
Palazzo della Mercanzia (Bologna, Italy)
Stores, Retail--Italy--Bologna.