Columbia subject headings:
Greece--Antiquities--Congresses.
Greece--Relations--Middle East--Congresses.
Middle East--Relations--Greece--Congresses.
Middle East--Relations--Rome--Congresses.
Rome--Antiquities--Congresses.
Rome--Relations--Middle East--Congresses.
Harvard subject headings:
Civilization, Ancient--Congresses
East and West--Congresses
Greece--Relations--Middle East--Congresses.
Rome--Relations--Middle East--Congresses.
Princeton subject headings:
Asia--Relations--Greece--Congresses.
Asia--Relations--Rome--Congresses.
Civilization, Greco-Roman--Oriental influences--Congresses.
Greece--Antiquities--Congresses.
Greece--Relations--Asia--Congresses.
Rome--Antiquities--Congresses.
Rome--Relations--Asia--Congresses.