Subject: Civil Law
Title: Civil law
Subject: Canon Law
Author of work: Gregorius IX
Title: Decretales
Subject: Medicine
Title: Medical commentary
Subject: Medicine
Title: Medicine
Subject: Theology
Author of work: Petrus Lombardus
Title: Sententiae
Title: [no title assigned]
Subject: Philosophy
Author of work: Aristoteles
Title: Analytica posteriora
Subject: Theology
Author of work: Petrus Lombardus
Title: Sententiae
Subject: Science
Author of work: Alhazen
Title: Optica
Subject: Philosophy
Author of work: Aristoteles
Title: De juventute et senectute