St. Augustine, Aurelius. Writings of St. Augustine, vol. 9 (Letters Vol. I. 1-82). New York: Fathers of the Church, Inc., 1951. 
Red cloth, no dust jacket, former library book, library label removed from spine, tight, 420 clean pp. Good. Hardcover.
The Fathers of the Church: A New Translation. Writings of St. Augustine vol. IX.