Columbia subject headings:
Archaeology, Medieval--Italy--Emilia-Romagna.
Emilia-Romagna (Italy)--Antiquities.
Emilia-Romagna (Italy)--History.
Excavations (Archaeology)--Italy--Emilia-Romagna.
Refuse and refuse disposal--Italy--Emilia-Romagna--History--To 1500.
Harvard subject headings:
Archaeology, Medieval--Italy--Emilia-Romagna.
Emilia-Romagna (Italy)--Antiquities.
Emilia-Romagna (Italy)--History.
Excavations (Archaeology)--Italy--Emilia-Romagna.
Refuse and refuse disposal--Italy--Emilia-Romagna--History--To 1500.
Princeton subject headings:
Archaeology, Medieval--Italy--Emilia-Romagna.
Emilia-Romagna (Italy)--Antiquities.
Emilia-Romagna (Italy)--History.
Excavations (Archaeology)--Italy--Emilia-Romagna.
Refuse and refuse disposal--Italy--Emilia-Romagna--History--To 1500.