Columbia subject headings:
Augustine, of Hippo, Saint, 354-430. De civitate Dei--Congresses.
Christian civilization--History--Congresses.
Cultural fusion--Europe--History--Congresses.
Harvard subject headings:
Augustine, of Hippo, Saint, 354-430. De civitate Dei--Congresses.
Christianity and culture--History--Early church, ca. 30-600--Congresses.
Princeton subject headings: