APA (7th ed.) Citation

Bernard, J., Cipolla, C. M., & Borchardt, K. (1983). Mittelalter. Fischer.

Chicago Style (17th ed.) Citation

Bernard, Jacques, Carlo M. Cipolla, and Knut Borchardt. Mittelalter. Stuttgart [u.a.]: Fischer, 1983.

MLA (8th ed.) Citation

Bernard, Jacques, et al. Mittelalter. Fischer, 1983.