Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
Subject: Canon Law
Title: Treatise on canon law
Subject: Theology
Author of work: Petrus Lombardus
Title: In Psalmos
Subject: Civil Law
Author of work: Bartolus de Saxoferrato
Title: Super prima parte Codicis
Subject: Theology
Title: Theology
Subject: Theology
Title: Theology
Subject: Biblica
Title: Concordantiae Bibliae
Subject: Liturgy
Title: Processionale
Subject: Philosophy
Author of work: Aristoteles
Title: Physica
Subject: Theology
Author of work: Thomas Aquinas
Title: Summa theologiae