Columbia subject headings:
Gubbio (Italy)--History--Congresses.
Gubbio (Italy)--Intellectual life--Congresses.
Harvard subject headings:
Gubbio (Italy)--Intellectual life--Congresses.
Magnificat (Music)
Princeton subject headings:
Gubbio (Italy)--Civilization--Congresses.
Humanism--Italy--Gubbio--Congresses.
Renaissance--Italy--Gubbio--Congresses.