Columbia subject headings:
Early printed books--Italy--Perugia--Exhibitions.
Manuscripts, Medieval--Italy--Perugia--Exhibitions.
Università di Perugia--History--Sources--Exhibitions.
Harvard subject headings:
Early printed books--Italy--Perugia--Exhibitions.
Manuscripts, Medieval--Italy--Perugia--Exhibitions.
Università di Perugia--History--Sources--Exhibitions.
Princeton subject headings: