Columbia subject headings:
Turkey--Antiquities--Congresses.
Turkey--Civilization--Influence--Congresses.
Turkey--History--To 1500--Congresses.
Harvard subject headings:
Civilization, Greco-Roman--Congresses
Classical antiquities--Congresses.
Greece--Civilization--Oriental influences--Congresses.
Rome--Civilization--Oriental influences--Congresses.
Turkey--Antiquities--Congresses.
Turkey--Civilization--Influence--Congresses.
Turkey--History--To 1500--Congresses.
Princeton subject headings:
Classical antiquities--Congresses.
Turkey--Antiquities--Congresses.
Turkey--Civilization--Influence--Congresses.
Turkey--History--To 1500--Congresses.