Cita APA (7a ed.)

Kuehnemund, R. (1940). Faust and Zarathustra in our time. [s.n.].

Cita Chicago Style (17a ed.)

Kuehnemund, Richard. Faust and Zarathustra in Our Time. [S.l.]: [s.n.], 1940.

Cita MLA (9a ed.)

Kuehnemund, Richard. Faust and Zarathustra in Our Time. [s.n.], 1940.