Subject: Canon Law
Author of work: Gratianus
Title: Decretum Gratiani
 
    
Subject: Canon Law
Title: Constitutiones Clementinae
 
    
Subject: Philosophy
Title: Natural philosophy
 
    
Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
 
    
Subject: Canon Law
Title: Treatise on canon law
 
    
Subject: Philosophy
Title: Comment. on Aristotle's Meteora
 
    
Subject: Theology
Author of work: Augustinus
Title: In Genesim contra Manichaeos
 
    
Subject: Liturgy
Title: Breviarium
 
    
Subject: Liturgy
Title: Missale
 
    
Subject: Liturgy
Title: Breviarium