Cita APA (7th ed.)

Simon, B. (2004). The essence of the gnostics (Eagle editions.). Chartwell Books.

Cita Chicago (17th ed.)

Simon, Bernard. The Essence of the Gnostics. Eagle editions. Edison, N.J: Chartwell Books, 2004.

Cita MLA (9th ed.)

Simon, Bernard. The Essence of the Gnostics. Eagle editions. Chartwell Books, 2004.