Subject: Biblica
Title: Commentary on St. Matthew
Subject: History
Author of work: Ranulphus Higden
Title: Polychronicon
Subject: Canon Law
Author of work: Gratianus
Title: Decretum Gratiani
Subject: Liturgy
Title: Breviarium
Subject: Epistolae
Author of work: Gregorius I
Title: Registrum
Subject: Philosophy
Author of work: Boethius
Title: Topica
Subject: Liturgy
Title: Antiphonale
Subject: Sermons
Title: Sermones
Subject: Theology
Title: Theology
Subject: Liturgy
Title: Missale