Cita APA (7a ed.)

Schmidt, W., Pinnow, H., Steudel, T., & Wilmanns, E. (1931). Das Zeitalter Bismarcks. Teubner.

Cita Chicago Style (17a ed.)

Schmidt, Willi, Hermann Pinnow, Theodor Steudel, y Ernst Wilmanns. Das Zeitalter Bismarcks. Leipzig: Teubner, 1931.

Cita MLA (9a ed.)

Schmidt, Willi, et al. Das Zeitalter Bismarcks. Teubner, 1931.