Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
Subject: Sermons
Title: Index to a collection of 90 or more homilies
Subject: Biblica
Author of work: Ambrosius
Title: In Ps. CXVIII
Subject: Philosophy
Author of work: Walter Burley
Title: In Ethica Aristotelis
Subject: Canon Law
Author of work: Innocentius IV
Title: In Decretales
Subject: Theology
Author of work: Gregorius I
Title: Moralia
Subject: Theology
Title: Index to a theological work
Subject: Theology
Author of work: Augustinus
Title: In Psalmos