Cita APA (7a ed.)

Haardt, R. (1971). Gnosis: : character and testimony. E.J. Brill.

Cita Chicago Style (17a ed.)

Haardt, Robert. Gnosis: : Character and Testimony. Leiden: E.J. Brill, 1971.

Cita MLA (9a ed.)

Haardt, Robert. Gnosis: : Character and Testimony. E.J. Brill, 1971.