Columbia subject headings:
Basil, Saint, Bishop of Caesarea, approximately 329-379. Correspondence.
Letters--History and criticism.
Harvard subject headings:
Basil, Saint, Bishop of Caesarea, approximately 329-379--Correspondence.
Princeton subject headings:
Basil, Saint, Bishop of Caesarea, approximately 329-379. Correspondence.
Christian saints--Turkey--Correspondence.
Church history--4th century--Sources.