(1992). Visual communication: By Helmut Löhr and some friends (1. ed.). Löhr [Selbstverl.].
Chicagoスタイル(17版)引用形式Visual Communication: By Helmut Löhr and Some Friends. 1. ed. [Düsseldorf]: Löhr [Selbstverl.], 1992.
MLA(8版)引用形式Visual Communication: By Helmut Löhr and Some Friends. 1. ed. Löhr [Selbstverl.], 1992.
警告: この引用は必ずしも正確ではありません.