Columbia subject headings:
Artists' preparatory studies--Italy--Orvieto--Catalogs.
Nebbia, Cesare, approximately 1536-1614--Catalogs.
Harvard subject headings:
Artists' preparatory studies--Italy--Orvieto--Catalogs.
Nebbia, Cesare, approximately 1536-1614--Catalogs.
Princeton subject headings:
Drawing, Italian--Italy--Orvieto--16th century.
Nebbia, Cesare, approximately 1536-1614.