Subject: Canon Law
Title: Commentary on canon law
Subject: Pastoralia
Author of work: Johannes de Friburgo
Title: Summa confessorum
Subject: Biblica
Title: Concordantiae Bibliae
Subject: Canon Law
Author of work: Gratianus
Title: Decretum Gratiani
Subject: Pastoralia
Author of work: Johannes de Friburgo
Title: Summa confessorum
Subject: Philosophy
Author of work: Aegidius Romanus
Title: De regimine principum
Subject: Theology
Author of work: Augustinus
Title: Tractatus in Johannem