Columbia subject headings:
Humanism--Italy--Congresses.
Italy--Civilization--1268-1559--Congresses.
Pius II, Pope, 1405-1464--Congresses.
Harvard subject headings:
Humanism--Italy--Congresses.
Italy--Civilization--1268-1559--Congresses.
Pius II, Pope, 1405-1464--Congresses.
Princeton subject headings:
Italy--Civilization--1268-1559--Congresses.
Pius II, Pope, 1405-1464--Congresses.