Cita APA (7a ed.)

Lassalle, F. (1863). Was nun? [s.n.].

Cita Chicago Style (17a ed.)

Lassalle, Ferdinand. Was Nun? Zürich: [s.n.], 1863.

Cita MLA (9a ed.)

Lassalle, Ferdinand. Was Nun? [s.n.], 1863.