Cite

Sermons, etc

MLA

Bernard, of Clairvaux, Saint, 1090 or 1091-1153. Sermons, etc. [between 1450 and 1500]. https://collections.library.yale.edu/catalog/17314155.

APA, 6th edition

Bernard, of Clairvaux, Saint, 1090 or 1091-1153. ([between 1450 and 1500])[Sermons, etc]. https://collections.library.yale.edu/catalog/17314155.