Columbia subject headings:
Copernicus, Nicolaus, 1473-1543--Exhibitions.
Università di Ferrara--History--Exhibitions.
Harvard subject headings:
Copernicus, Nicolaus, 1473-1543--Exhibitions.
Università di Ferrara--History--Exhibitions.
Princeton subject headings:
Copernicus, Nicolaus, 1473-1543--Exhibitions.
Università di Ferrara--History--Exhibitions.