Columbia subject headings:
Harvard subject headings:
Bologna Region (Italy)--Politics and government.
Bologna Region (Italy)--Rural conditions.
Bologna Suburban Area (Italy)--History.
Land tenure--Italy--Bologna Region--History--18th century.
Upper class--Italy--Bologna Region--History--18th century.
Princeton subject headings:
Bologna (Italy)--Suburbs and environs--History--18th century.
Bologna Region (Italy)--Politics and government.
Bologna Region (Italy)--Rural conditions.
Land tenure--Italy--Bologna Region--History--18th century.
Upper class--Italy--Bologna Region--History--18th century.