Columbia subject headings:
Azo, Portius, -approximately 1230--Criticism, Textual.
Glossators--Indexes.
Glossators--Manuscripts.
Harvard subject headings:
Glossators.
Law, Medieval.
Law--Europe--History
Princeton subject headings:
Azo, Portius, -approximately 1230--Criticism, Textual.
Civil law systems.
Glossators.
Law--Study and teaching--Italy--History--Sources.