Columbia subject headings:
Excavations (Archaeology)--Italy--Ferrara.
Ferrara (Italy)--Antiquities.
Ships, Medieval--Italy--Ferrara.
Harvard subject headings:
Archaeology, Medieval--Italy--Ferrara.
Excavations (Archaeology)--Italy--Ferrara.
Ferrara (Italy)--Antiquities.
Ships, Medieval--Italy--Ferrara.
Princeton subject headings:
Excavations (Archaeology)--Italy--Ferrara.
Ferrara (Italy)--Antiquities.
Ships, Medieval--Italy--Ferrara.