Columbia subject headings:
Harvard subject headings:
Basilica di S. Sebastiano (Rome, Italy)
Catacombs--Italy--Rome
Christian antiquities--Italy--Rome.
Church history--Primitive and early church, ca. 30-600
Excavations (Archaeology)--Italy--Rome
Rome (Italy)--Antiquities.
Sepulchral monuments--Italy--Rome.
Princeton subject headings:
Basilica di S. Sebastiano (Rome, Italy)
Catacombs--Italy--Rome.
Christian antiquities--Italy--Rome.
Rome (Italy)--Antiquities.