Cita APA (7a ed.)

Guerric, d., Morson, J., & Costello, H. (1970). Sermons. Cerf.

Cita Chicago Style (17a ed.)

Guerric, d'Igny, John Morson, y Hilary Costello. Sermons. Paris: Cerf, 1970.

Cita MLA (9a ed.)

Guerric, d'Igny, et al. Sermons. Cerf, 1970.