Cita APA (7a ed.)

Gessel, W. (1995). Augustinus. Herder.

Cita Chicago Style (17a ed.)

Gessel, Wilhelm. Augustinus. Freiburg im Breisgau [u.a.]: Herder, 1995.

Cita MLA (9a ed.)

Gessel, Wilhelm. Augustinus. Herder, 1995.