Cita APA (7a ed.)

(1992). Visual communication: By Helmut Löhr and some friends (1. ed.). Löhr [Selbstverl.].

Cita Chicago Style (17a ed.)

Visual Communication: By Helmut Löhr and Some Friends. 1. ed. [Düsseldorf]: Löhr [Selbstverl.], 1992.

Cita MLA (8a ed.)

Visual Communication: By Helmut Löhr and Some Friends. 1. ed. Löhr [Selbstverl.], 1992.