Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
Subject: Liturgy
Title: Breviarium cum notis
Subject: Liturgy
Title: Breviarium
Subject: Canon Law
Author of work: Gratianus
Title: Decretum Gratiani
Subject: Canon Law
Title: Commentary on Decretum Gratiani
Subject: Theology
Author of work: Hieronymus
Title: Comment. in Prophetas Minores
Subject: Liturgy
Title: Breviarium
Subject: Civil Law
Title: Treatise on civil law
Subject: Canon Law
Author of work: Gratianus
Title: Decretum Gratiani
Subject: Canon Law
Title: Decretales