APA (7th ed.) Citation

Meinhardt, M., Althoff, G., Ranft, A., & Selzer, S. (2007). Mittelalter. Oldenbourg Geschichte Lehrbuch.

Chicago Style (17th ed.) Citation

Meinhardt, Matthias, Gerd Althoff, Andreas Ranft, and Stephan Selzer. "Mittelalter." Oldenbourg Geschichte Lehrbuch 2007.

MLA (9th ed.) Citation

Meinhardt, Matthias, et al. "Mittelalter." Oldenbourg Geschichte Lehrbuch, 2007.