APA (7th ed.) Citation

Paffrath, A., Hammer, G., & Bernard Clairvaux, A. (1990). Bernhard von Clairvaux. Bernhard von Clairvaux.

Chicago Style (17th ed.) Citation

Paffrath, Arno, Gabriel Hammer, and Abt Bernard Clairvaux. "Bernhard Von Clairvaux." Bernhard Von Clairvaux 1990.

MLA (9th ed.) Citation

Paffrath, Arno, et al. "Bernhard Von Clairvaux." Bernhard Von Clairvaux, 1990.

Warning: These citations may not always be 100% accurate.