MLA

Benedict, Saint, Abbot of Monte Cassino, Cluny (Benedictine abbey). Regula sanctissimi patris Benedicti cum declarationibus & constitutionibus prout seruantur in ordine sacro Cluniacensi à patribus strictioris obseruantia.. 1655. https://collections.library.yale.edu/catalog/10190182.

APA, 6th edition

Benedict, Saint, Abbot of Monte Cassino, & Cluny (Benedictine abbey). (1655)[Regula sanctissimi patris Benedicti cum declarationibus & constitutionibus prout seruantur in ordine sacro Cluniacensi à patribus strictioris obseruantia.]. https://collections.library.yale.edu/catalog/10190182.