Columbia subject headings:
Church--History of doctrines--Early church, ca. 30-600.
Fathers of the church.
Harvard subject headings:
Church--History of doctrines--Early church, ca. 30-600
Church--History of doctrines--Early church, ca. 30-600.
Fathers of the church.
Princeton subject headings:
Church--History of doctrines--Early church, ca. 30-600.
Fathers of the church.