APA (7th ed.) Citation

Summers, C., Levin, F., & Niere, C. (2017). Ausser sich: Roman. Beltz & Gelberg.

Chicago Style (17th ed.) Citation

Summers, Courtney, Friederike Levin, and Cornelia Niere. Ausser Sich: Roman. Weinheim ; Basel: Beltz & Gelberg, 2017.

MLA (9th ed.) Citation

Summers, Courtney, et al. Ausser Sich: Roman. Beltz & Gelberg, 2017.