APA (7th ed.) Citation

Zuckmayer, C., Nickel, G., & Schrön, J. (2002). Geheimreport. Wallstein.

Chicago Style (17th ed.) Citation

Zuckmayer, Carl, Gunther Nickel, and Johanna Schrön. Geheimreport. Göttingen: Wallstein, 2002.

MLA (8th ed.) Citation

Zuckmayer, Carl, et al. Geheimreport. Wallstein, 2002.