Cita APA (7th ed.)

Mueller, R., Stiefel, E., & Brücher, H. (1972). Doing busines in Germany (7a. ed.). Fritz Knapp.

Cita Chicago (17th ed.)

Mueller, Rudolf, Ernest Stiefel, i Horst Brücher. Doing Busines in Germany. 7a. ed. Frankfurt am Main: Fritz Knapp, 1972.

Cita MLA (9th ed.)

Mueller, Rudolf, et al. Doing Busines in Germany. 7a. ed. Fritz Knapp, 1972.