APA (7th ed.) Citation

Hesse, H., Gruntz, G., Pinter, T., Sydow, M. v., Sanda, D., & Clémenti, P. Hermann Hesse's Steppenwolf.

Chicago Style (17th ed.) Citation

Hesse, Hermann, George Gruntz, Tomislav Pinter, Max von Sydow, Dominique Sanda, and Pierre Clémenti. Hermann Hesse's Steppenwolf.

MLA (9th ed.) Citation

Hesse, Hermann, et al. Hermann Hesse's Steppenwolf.