Cita APA (7a ed.)

Kneib, J. (1932). Porta Nigra: Roman unserer Zeit. Paul List.

Cita Chicago Style (17a ed.)

Kneib, Jakob. Porta Nigra: Roman Unserer Zeit. Leipzig: Paul List, 1932.

Cita MLA (9a ed.)

Kneib, Jakob. Porta Nigra: Roman Unserer Zeit. Paul List, 1932.