Columbia subject headings:
Bologna (Italy)--Historiography.
Bologna (Italy)--History--To 1506.
Family archives--Italy--Bologna--History.
Harvard subject headings:
Bologna (Italy)--Historiography.
Bologna (Italy)--History--To 1506
Family archives--Italy--Bologna--History.
Princeton subject headings:
Bologna (Italy)--Historiography.
Bologna (Italy)--History--To 1506.
Family archives--Italy--Bologna--History.