Cita APA (7a ed.)

Stead, G. C. (1968). The Valentinian myth of Sophia. [s.n.].

Cita Chicago Style (17a ed.)

Stead, G. C. The Valentinian Myth of Sophia. [S.l.]: [s.n.], 1968.

Cita MLA (9a ed.)

Stead, G. C. The Valentinian Myth of Sophia. [s.n.], 1968.