APA (7th ed.) Citation

Beyerle, S., Fassl, S., Hamann, F., & Jeschonnek, H. (2008). Zwölf. Karl-Hofer-Gesellschaft.

Chicago Style (17th ed.) Citation

Beyerle, Sabine, Sabine Fassl, Friederike Hamann, and Heike Jeschonnek. Zwölf. Berlin: Karl-Hofer-Gesellschaft, 2008.

MLA (9th ed.) Citation

Beyerle, Sabine, et al. Zwölf. Karl-Hofer-Gesellschaft, 2008.