The Riddle of Augustine's Confessions : a plotinian key
  MLA
  O'Connell, Robert J. The Riddle of Augustine's Confessions : a Plotinian Key. New York (N.Y.): Fordham university, 1964.
  APA
  O'Connell, R. J. (1964). The Riddle of Augustine's Confessions : a plotinian key. New York (N.Y.): Fordham university.
  Chicago
  O'Connell, Robert J. The Riddle of Augustine's Confessions : a Plotinian Key. New York (N.Y.): Fordham university, 1964.