Subject: Theology
Title: Theological commentary
 
    
Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
 
    
Subject: Theology
Author of work: Gregorius I
Title: Moralia
 
    
Subject: Civil Law
Author of work: Justinianus
Title: Digestum vetus
 
    
Subject: Theology
Title: theological questions
 
    
Subject: Civil Law
Author of work: Justinianus
Title: Digestum vetus
 
    
Subject: Civil Law
Author of work: Justinianus
Title: Digestum vetus
 
    
Subject: Documentary
Title: Registrum Johannis de Gaunt
 
    
Subject: Encyclopaedia
Author of work: Isidorus
Title: Etymologiae
 
    
Subject: Theology
Author of work: Origenes
Title: In Leviticum