Subject: Liturgy
Title: Antiphonale (or Breviarium)
Subject: Sermons
Author of work: Bernardus Clarevallensis
Title: Sermones super Cantica canticorum
Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
Subject: Theology
Author of work: Gregorius I
Title: Moralia
Subject: Encyclopaedia
Author of work: Isidorus
Title: Etymologiae
Subject: Theology
Author of work: Petrus Comestor
Title: Historia scholastica
Subject: Biblica
Author of work: Hieronymus
Title: In Prophetas Minores
Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
Subject: Philosophy
Title: Moral philosophy
Subject: Theology
Author of work: Hieronymus
Title: In Prophetas Minores