Columbia subject headings:
Harvard subject headings:
Civilization, Western--Roman influences
Rome (Italy)--Antiquities
Rome (Italy)--Church history
Rome (Italy)--Civilization
Princeton subject headings:
Civilization, Western--Roman influences--Congresses.
Rome (Italy)--Antiquities--Congresses.
Rome (Italy)--Church history--Congresses.
Rome (Italy)--Civilization--Congresses.