Subject: Canon Law
Title: Sextus liber decretalium
Subject: Liturgy
Title: Service book
Subject: Grammar
Author of work: Johannes Balbus
Title: Catholicon
Title: [No title assigned]
Subject: History
Title: History (?)
Subject: Liturgy
Title: Missale
Subject: Grammar
Author of work: Johannes Balbus
Title: Catholicon
Subject: Canon Law
Title: Index to canon law