APA (7th ed.) Citation

Béguin, A., Zumthor, P., & Bernat, d. C. (1944). Saint Bernard de Clairvaux. Egloff.

Chicago Style (17th ed.) Citation

Béguin, Albert, Paul Zumthor, and de Claravall Bernat. Saint Bernard De Clairvaux. Fribourg: Egloff, 1944.

MLA (9th ed.) Citation

Béguin, Albert, et al. Saint Bernard De Clairvaux. Egloff, 1944.