Columbia subject headings:
Civilization, Greco-Roman--Congresses.
Greece--Civilization--Roman influences--Congresses.
Rome--Civilization--Greek influences--Congresses.
Harvard subject headings:
Greece--Civilization--Roman influences--Congresses.
Latin literature--Appreciation--Greece--Congresses.
Rome--Civilization--Congresses.
Princeton subject headings:
Civilization, Greco-Roman--Congresses.
Greece--Civilization--Roman influences--Congresses.
Rome--Civilization--Greek influences--Congresses.