Columbia subject headings:
Christian literature, Early--History and criticism.
Christianity--Origin.
Church history--Primitive and early church, ca. 30-600.
Harvard subject headings:
Christian literature, Early--History and criticism.
Christianity--Origin
Church history--Primitive and early church, ca. 30-600
Church history--Primitive and early church, ca. 30-600.
Princeton subject headings:
Christian literature, Early--History and criticism.
Christianity--Origin.
Church history--Primitive and early church, ca. 30-600.