Cita APA (7th ed.)
Haar, S. C. (2003). Simon Magus: The first Gnostic? Walter de Gruyter.
Cita Chicago (17th ed.)
Haar, Stephen Charles. Simon Magus: The First Gnostic? Berlin ; New York: Walter de Gruyter, 2003.
Cita MLA (9th ed.)
Haar, Stephen Charles. Simon Magus: The First Gnostic? Walter de Gruyter, 2003.
Atenció: Aquestes cites poden no estar 100% correctes.