APA (7th ed.) Citation

Guerric d'Igny, m. c. 1., Morson, J., Costello, N. L., & Deseille, P. (1970). Sermons. Cerf.

Chicago Style (17th ed.) Citation

Guerric d'Igny, m. ca. 1157., John Morson, Nancy Lorraine Costello, and Placide Deseille. Sermons. Paris: Cerf, 1970.

MLA (9th ed.) Citation

Guerric d'Igny, m. ca. 1157., et al. Sermons. Cerf, 1970.