[Be sure to have a look at Jim O'Donnell's far more extensive Augustine page]

Life

Augustine, Confessiones, ed. M. Skutella (1934; rpt. Stuttgart 1981)  

Possidius, Vita S. Augustini, ed. H. Weiskotten (Princeton and New York, 1919)  

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Peter Brown, Augustine of Hippo (London, 1967)

Bibliography

C. Andresen, Bibliographia Augustiniana (Darmstadt, 1973)

+ More recent annual bibliographies in REA. (see below)

Reference Works.

C. Mayer, ed., Augustinus-Lexikon (Basel & Stuttgart, 1986 -) (to 'Deus') 

Specimina eines Lexicon Augustinianum = SLA (Vienna, 1987 -)  

Journal

Revue des études augustiniennes = REA (1955-)

Sermons.

Text

• PL XXXVIII-XXXIX (Maurine edd.)
• Sermones post Maurinos reperti, ed. G. Morin (Rome, 1930)
• CCSL 41, ed. C. Lambot (Serm. 1-50)
• Augustin d'Hippone , Vingt-six sermons au peuple d'Afrique, ed. F. Dolbeau (Turnhout, 1996) 
• C. Lambot, S. Aurelii Augustini Sermones Selecti XVIII (Utrecht, 1950)

Orientation

P. Verbraken, Études critiques sur les sermons authentiques de Saint Augustin (Steenbrugis, 1976). Classics Stacks 281.1 IN7

Style & Latinity

General and Sermons

Erich Auerbach, Literary Language and its Public, pp. 25-66 ("Sermo Humilis")

C. Mohrmann, Die altchristliche Sondersprache in den Sermones des Heiligen Augustin (Nijmegen, 1932) 

—, "Das Wortspiel in den augustinischen Sermones," in Études I: 323-349

—, "Saint Augustin prédicateur," in Études I: 391-402

Eduard Norden, Antike Kunstprosa II: 615-624

Edith Schuchter, "Zum Predigtstil des hl. Augustinus," Wiener Studien 52 (1934), 115-138

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Other Works

C.I. Balmus, Étude sur le style de Saint Augustin dans les Confessions et la Cité de Dieu (Paris, 1930)

Elsie Marie [sive Sister Wilfrid] Parsons, A Study of the Vocabulary and Rhetoric of the Letters of Saint Augustine (Washington, 1923)