Columbia subject headings:
Bolsena (Italy)--Church history.
Catacombs--Italy--Bolsena.
Christian antiquities--Italy--Bolsena.
Inscriptions, Latin--Italy--Bolsena.
Harvard subject headings:
Bolsena (Italy)--Church history.
Catacombs--Italy--Bolsena.
Christian antiquities--Italy--Bolsena.
Inscriptions, Latin--Italy--Bolsena.
Princeton subject headings:
Catacombs--Italy--Bolsena.
Christian art and symbolism--Italy--Bolsena.