Subject: Theology
Author of work: Petrus Lombardus
Title: In Psalmos
Subject: Theology
Author of work: Gregorius I
Title: Moralia
Subject: Theology
Author of work: Gregorius I
Title: De cura pastorali
Subject: Epistolae
Author of work: Gregorius I
Title: Registrum
Subject: Theology
Author of work: Augustinus
Title: In Psalmos
Subject: Theology
Author of work: Ambrosius
Title: In Apocalypsim
Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
Subject: Theology
Author of work: Gregorius I
Title: Registrum
Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales