Cita APA (7a ed.)

Marbach, O. (1843). Unsterblichkeit. [s.n.].

Cita Chicago Style (17a ed.)

Marbach, Oswald. Unsterblichkeit. Leipzig: [s.n.], 1843.

Cita MLA (9a ed.)

Marbach, Oswald. Unsterblichkeit. [s.n.], 1843.