Subject: Canon Law
Title: Canon law
Subject: Liturgy
Title: Breviarium
Subject: Sermons
Author of work: Petrus Comestor
Title: Sermones, &c.
Subject: Theology
Title: Theology
Subject: Liturgy
Title: Missale
Subject: Philosophy
Author of work: Averroes
Title: De spmpno et vigilia, De longitudine et brevitate vitae, De generatione et corruptione
Subject: Theology
Author of work: Gregorius I
Title: Registrum
Subject: Canon Law
Author of work: Innocentius IV
Title: In Decretales
Subject: Theology
Title: Theology
Subject: Philosophy
Author of work: Aristoteles
Title: De caelo et mundo