Columbia subject headings:
Church history--Primitive and early church, ca. 30-600.
Rome--Social conditions.
Harvard subject headings:
Christian sociology--History--Early church, ca. 30-600.
Church history--Primitive and early church, ca. 30-600
Rome--Social conditions.
Princeton subject headings:
Church history--Primitive and early church, ca. 30-600.
Rome--Social conditions.