Cita APA (7a ed.)

Martens, T., & Sandvoß, P. (2001). Medienmetropole Hamburg.

Cita Chicago Style (17a ed.)

Martens, Tanja, y Petra Sandvoß. Medienmetropole Hamburg. Hamburg, 2001.

Cita MLA (8a ed.)

Martens, Tanja, y Petra Sandvoß. Medienmetropole Hamburg. 2001.