Cita APA (7a ed.)

Lisken, H. (1987). Polizei in Düsseldorf.

Cita Chicago Style (17a ed.)

Lisken, Hans. Polizei in Düsseldorf. Düsseldorf, 1987.

Cita MLA (8a ed.)

Lisken, Hans. Polizei in Düsseldorf. 1987.