Columbia subject headings:
Harvard subject headings:
America--Discovery and exploration--Centennial celebrations, etc.--Congresses.
Columbus Quincentenary, 1992-1993--Italy--Brescia--Congresses.
Columbus, Christopher--Congresses.
Princeton subject headings:
America--Discovery and exploration--Congresses.
Columbus, Christopher--Congresses.
Italy--Civilization--1268-1559--Congresses.
Italy--Civilization--American influences--Congresses.