Columbia subject headings:
Ambrose, Saint, Bishop of Milan, -397. De officiis.
Christian ethics--History--Early church, ca. 30-600.
Church history--Primitive and early church, ca. 30-600.
Harvard subject headings:
Ambrose, Saint, Bishop of Milan, -397. De officiis.
Christian ethics--History--Early church, ca. 30-600
Church history--Primitive and early church, ca. 30-600
Princeton subject headings:
Ambrose, Saint, Bishop of Milan, -397. De officiis.
Christian ethics--History--Early church, ca. 30-600.
Church history--Primitive and early church, ca. 30-600.