Columbia subject headings:
Basílica di San Ippolito (Isola Sacra, Italy)
Excavations (Archaeology)--Italy--Isola Sacra.
Isola Sacra (Italy)--Antiquities.
Pons Matidiae (Isola Sacra, Italy)
Harvard subject headings:
Excavations (Archaeology)--Italy--Isola Sacra.
Isola Sacra (Italy)--Antiquities, Roman.
Pons Matidiae.
San Ippolito (Basilica), Isola Sacra, Italy.
Princeton subject headings:
Architecture, Early Christian--Italy--Isola Sacra.
Isola Sacra (Italy)--Antiquities.
Italy--Antiquities.