Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
Subject: Theology
Author of work: Thomas Walden
Title: Doctrinale fidei
Subject: Logic
Title: Commentary on logic
Subject: Civil Law
Author of work: Justinianus
Title: Digestum novum
Subject: Liturgy
Title: Service book
Subject: Theology
Title: Theological commentary
Subject: Liturgy
Title: Graduale
Subject: Theology
Title: Theological commentary
Subject: Biblica
Title: Commentary on the gospels
Subject: Canon Law
Author of work: Reymundus de Peniaforti
Title: Summa cum commento