APA (7th ed.) Citation

Curtius, E. R., Hausmann, F., Mertz-Rychner, C., & Rychner, M. (2015). Freundesbriefe 1922-1955. Vittorio Klostermann.

Chicago Style (17th ed.) Citation

Curtius, Ernst Robert, Frank-Rutger Hausmann, Claudia Mertz-Rychner, and Max Rychner. Freundesbriefe 1922-1955. Frankfurt am Main: Vittorio Klostermann, 2015.

MLA (9th ed.) Citation

Curtius, Ernst Robert, et al. Freundesbriefe 1922-1955. Vittorio Klostermann, 2015.