Columbia subject headings:
Catacombs--Italy--Rome.
Christian antiquities--Italy--Rome.
Christian inscriptions--Italy--Rome.
Inscriptions, Greek--Italy--Rome.
Inscriptions, Latin--Italy--Rome.
Severa, Saint.
Harvard subject headings:
Catacombs--Italy--Rome
Catacombs--Italy--Rome--Early works to 1800.
Christian antiquities--Italy--Rome--Early works to 1800.
Christian antiquities--Italy--Rome.
Christian inscriptions--Italy--Rome--Early works to 1800.
Christian inscriptions--Italy--Rome.
Inscriptions, Greek--Italy--Rome--Early works to 1800.
Inscriptions, Greek--Italy--Rome.
Inscriptions, Latin--Italy--Rome
Inscriptions, Latin--Italy--Rome--Early works to 1800.
Severa, Martyr--Monuments.
Severa, Saint.
Princeton subject headings: