APA (7th ed.) Citation

Rowley, N., Williams, K., & Völlnagel, J. Frühling 2020: Warburg in Berlin = Spring 2020 : Warburg in Berlin.

Chicago Style (17th ed.) Citation

Rowley, Neville, Karen Williams, and Jörg Völlnagel. Frühling 2020: Warburg in Berlin = Spring 2020 : Warburg in Berlin.

MLA (9th ed.) Citation

Rowley, Neville, et al. Frühling 2020: Warburg in Berlin = Spring 2020 : Warburg in Berlin.