St. Augustine, Dr. Howard Taylor, Mrs. Howard Taylor, Apostolic Fathers, J. Oswald Sanders (2010). “Moody Classics Complete Set”, p.1209, Moody Publishers
St. Augustine, Dr. Howard Taylor, Mrs. Howard Taylor, Apostolic Fathers, J. Oswald Sanders (2010). “Moody Classics Complete Set: Includes 19 Classics of the Faith in a Single Volume”, p.1326, Moody Publishers