Columbia subject headings:
Catacombs--Italy--Rome--History.
Catacombs--Italy--Rome.
Catacombs.
Church history--Primitive and early church, ca. 30-600.
Harvard subject headings:
Art, Early Christian--Italy--Rome.
Catacombs--Italy--Rome
Christian antiquities--Italy--Rome.
Church history--Primitive and early church, ca. 30-600
Church history--Primitive and early church, ca. 30-600.
Church history.
Rome (Italy)--Buildings, structures, etc.
Princeton subject headings:
Art, Early Christian--Italy--Rome.
Catacombs--Italy--Rome.
Christian antiquities--Italy--Rome.
Church history--Primitive and early church, ca. 30-600.
Rome (Italy)--Buildings, structures, etc.