Cita APA (7a ed.)

Hauptmann, G. (1900). Michael Kramer. [s.n.].

Cita Chicago Style (17a ed.)

Hauptmann, Gerhart. Michael Kramer. Berlin: [s.n.], 1900.

Cita MLA (9a ed.)

Hauptmann, Gerhart. Michael Kramer. [s.n.], 1900.