APA (7th ed.) Citation

Hafner, J. E., Völkening, H., & Becci, I. (2018). Glaube in Potsdam. Glaube in Potsdam.

Chicago Style (17th ed.) Citation

Hafner, Johann Ev., Helga Völkening, and Irene Becci. "Glaube in Potsdam." Glaube in Potsdam 2018.

MLA (8th ed.) Citation

Hafner, Johann Ev., et al. "Glaube in Potsdam." Glaube in Potsdam, 2018.