Columbia subject headings:
Early printed books--16th century--Catalogs.
Italy--Imprints--Catalogs.
Harvard subject headings:
Early printed books--16th century--Catalogs.
Early printed books--Italy--16th century--Bibliography--Catalogs.
Italy--Imprints--Catalogs.
Princeton subject headings:
Bibliography--Italy--Early printed books--16th century--Catalogs.
Italy--Imprints--Catalogs.