APA (7th ed.) Citation

Guerricus, A. o. I. (1970). Liturgical sermons. Cistercian Publications.

Chicago Style (17th ed.) Citation

Guerricus, Abbot of Igny. Liturgical Sermons. Spencer, Mass.: Cistercian Publications, 1970.

MLA (9th ed.) Citation

Guerricus, Abbot of Igny. Liturgical Sermons. Cistercian Publications, 1970.