Columbia subject headings:
Church history--Primitive and early church, ca. 30-600.
Greece--History.
Rome--History.
Harvard subject headings:
Church history--Primitive and early church, ca. 30-600
Church history--Primitive and early church, ca. 30-600.
Greece--History--146 B.C.-323 A.D.
Greece--History.
Rome--History
Princeton subject headings:
Church history--Primitive and early church, ca. 30-600.
Greece--History.
Rome--History.