Columbia subject headings:
Bologna (Italy)--History--Sources.
Epitaphs--Italy--Bologna.
Inscriptions, Latin--Italy--Bologna.
Harvard subject headings:
Bologna (Italy)--History--Sources.
Epitaphs--Italy--Bologna.
Inscriptions, Latin--Italy--Bologna.
Princeton subject headings:
Bologna (Italy)--Antiquities, Roman.
Inscriptions, Latin--Italy--Bologna.
Pietra di Bologna.