Breve storia della psicologia / Helmut E. Lück. - Lück, Helmut E. (OLS)http://pul/name/76419 (Il Mulino, 2002)
Bibliografia p. [189]-210.

The Church : an introduction to the theology of St. Augustine / by Stanislaus J. Grabowski. - Grabowski, Stanislaus J. (OLS)http://pul/name/95421 (B. Herder book co., 1957)