Subject: Canon Law
Author of work: Gratianus
Title: Decretum Gratiani
Subject: Philosophy
Author of work: Aristoteles
Title: Meteora
Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
Subject: Canon Law
Author of work: Bernardus de Botone
Title: Casus decretalium
Subject: Canon Law
Title: Sextus liber decretalium
Subject: Classics
Author of work: Cicero
Title: De inventione rhetoricae
Subject: Philosophy
Author of work: Boethius
Title: Topica
Subject: Canon Law
Title: Casus decretalium (?)
Subject: Canon Law
Author of work: Gratianus
Title: Decretum Gratiani
Subject: Canon Law
Author of work: Gratianus
Title: Decretum Gratiani