Columbia subject headings:
Christian saints--Egypt--Correspondence.
Church history--5th century--Sources.
Desert Fathers--Correspondence.
Egypt--Church history--Sources.
Isidore, of Pelusium, Saint, active 5th century--Correspondence.
Harvard subject headings:
Christian saints--Egypt--Correspondence.
Egypt--Church history.
Isidore, of Pelusium, Saint, active 5th century--Correspondence.
Princeton subject headings:
Catholic Church--Egypt--Clergy--Correspondence.
Egypt--Church history--Sources.
Isidore, of Pelusium, Saint, active 5th century--Correspondence.