Subject: Canon Law
Title: Commentary on Decretals
Subject: Canon Law
Title: Commentary on Decretum Gratiani
Subject: Astronomy
Title: Comment. on Almagest
Subject: Canon Law
Title: Commentary on canon law
Subject: Civil Law
Title: Commentary on civil law
Subject: Biblica
Title: Comment. on Genesis
Subject: Law
Title: Comment. on law
Subject: Philosophy
Title: Comment. on Aristotle's Meteora
Subject: Civil Law
Title: Comment. on Codex Justiniani
Subject: Philosophy
Title: Comment. on Metaphysics