MLA

Bartholomew, of San Concordio, 1262-1347. Summa de casibus conscientiae. [between 1400 and 1450]. https://collections.library.yale.edu/catalog/10923623.

APA, 6th edition

Bartholomew, of San Concordio, 1262-1347. ([between 1400 and 1450])[Summa de casibus conscientiae]. https://collections.library.yale.edu/catalog/10923623.