APA (7th ed.) Citation

Unverzagt, A., Gips, C., & Kirsch, C. (2010). Handbuch PR-Recht. Helios-Media.

Chicago Style (17th ed.) Citation

Unverzagt, Alexander, Claudia Gips, and Christine Kirsch. Handbuch PR-Recht. Berlin: Helios-Media, 2010.

MLA (8th ed.) Citation

Unverzagt, Alexander, et al. Handbuch PR-Recht. Helios-Media, 2010.