Subject: Philosophy
Author of work: Nicholaus Trivet
Title: Comment. in Boethium, De consolatione philosophiae
Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
Subject: Canon Law
Author of work: Ivo Carnotensis
Title: Decretum
Subject: Philosophy
Author of work: Bartholomaeus Anglicus
Title: De proprietatibus rerum