Subject: Canon Law
Author of work: Johannes Andreae
Title: Comment. in Sextum librum Decretalium
Subject: Canon Law
Author of work: Guido de Baysio
Title: Comment. in Sextum librum Decretalium
Subject: Canon Law
Author of work: Gratianus
Title: Decretum
Subject: Liturgy
Title: Breviarium cum notis
Subject: Canon Law
Title: Treatise on canon law
Subject: Liturgy
Title: Breviarium cum notis
Subject: Liturgy
Title: Breviarium cum notis
Subject: Liturgy
Title: Breviarium
Subject: Canon Law
Title: Sextus liber decretalium
Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales