Columbia subject headings:
Harvard subject headings:
Account books--Italy--Bologna--History--To 1500--Sources.
Agricultural industries--Italy--Bologna--Accounting--History--Sources.
Bologna (Italy)--Commerce--History--Sources.
Bologna (Italy)--Economic conditions--Sources.
Guastavillani family.
Princeton subject headings:
Account books--Italy--Bologna--History--To 1500--Sources.
Agricultural industries--Italy--Bologna--Accounting--History--Sources.
Bologna (Italy)--Commerce--History--Sources.
Guastavillani family.