Markus, R. A. (1999). Augustine on magic: A neglected semiotic theory. Christianity in Relation to Jews, Greeks, and Romans.
Chicago-referens (17:e uppl.)Markus, Robert A. "Augustine on Magic: A Neglected Semiotic Theory." Christianity in Relation to Jews, Greeks, and Romans 1999.
MLA-referens (8:e uppl.)Markus, Robert A. "Augustine on Magic: A Neglected Semiotic Theory." Christianity in Relation to Jews, Greeks, and Romans, 1999.
Varning: dessa hänvisningar är inte alltid fullständigt riktiga.