Columbia subject headings:
Church history--Primitive and early church, ca. 30-600.
Greece--Church history.
Turkey--Church history.
Harvard subject headings:
Church history--Primitive and early church, ca. 30-600
Greece--Church history.
Turkey--Church history.
Princeton subject headings:
Church history--Primitive and early church, ca. 30-600.
Greece--Church history.
Turkey--Church history.