Columbia subject headings:
Church history--Primitive and early church, ca. 30-600.
Rome--History--Empire, 284-476.
Harvard subject headings:
Church history--Primitive and early church, ca. 30-600
Rome--History--Empire, 284-476.
Princeton subject headings:
Church history--Primitive and early church, ca. 30-600.
Rome--History--Empire, 284-476.