Cita APA (7a ed.)

Blackman, E. C. (1948). Marcion and his influence. S.P.C.K.

Cita Chicago Style (17a ed.)

Blackman, Edwin Cyril. Marcion and His Influence. London: S.P.C.K, 1948.

Cita MLA (9a ed.)

Blackman, Edwin Cyril. Marcion and His Influence. S.P.C.K, 1948.