Columbia subject headings:
Church history--Middle Ages, 600-1500.
Church history--Primitive and early church, ca. 30-600.
Roey, A. van.
Theology--History--Early church, ca. 30-600.
Theology--History--Middle Ages, 600-1500.
Harvard subject headings:
Church history--Primitive and early church, ca. 30-600
Orthodox Eastern Church--History.
Roey, A. van.
Theology--Early works to 1800
Theology--History--Early church, ca. 30-600
Princeton subject headings:
Church history--Middle Ages, 600-1500.
Church history--Primitive and early church, ca. 30-600.
Roey, A. van.
Theology--History--Early church, ca. 30-600.
Theology--History--Middle Ages, 600-1500.