Columbia subject headings:
Religion--Philosophy--Greece--History.
Religion--Philosophy--Turkey--History.
Harvard subject headings:
Religion--Philosophy--History--Greece--Congresses.
Religion--Philosophy--History--Turkey--Congresses.
Princeton subject headings:
Greece--Religious life and customs--Congresses.
Rites and ceremonies--Greece--Congresses.
Rites and ceremonies--Turkey--Congresses.
Turkey--Religious life and customs--Congresses.