APA (7th ed.) Citation

Pla, J., Geisler, E., & Castellet, J. M. (2007). Das Graue Heft. Suhrkamp.

Chicago Style (17th ed.) Citation

Pla, Josep, Eberhard Geisler, and J. M. Castellet. Das Graue Heft. Frankfurt am Main: Suhrkamp, 2007.

MLA (9th ed.) Citation

Pla, Josep, et al. Das Graue Heft. Suhrkamp, 2007.