Columbia subject headings:
Harvard subject headings:
Christian antiquities--Italy--Civitavecchia Region.
Christian inscriptions--Italy--Civitavecchia Region.
Civitavecchia Region (Italy)--Antiquities.
Inscriptions, Latin--Italy--Civitavecchia Region.
Italy--Antiquities.
Princeton subject headings:
Christian antiquities--Italy--Civitavecchia Region.
Civitavecchia Region (Italy)--Antiquities.
Inscriptions, Latin--Italy--Civitavecchia Region.
Italy--Antiquities.