Columbia subject headings:
Manuscripts--Italy--Lombardy--Catalogs.
Science--Manuscripts--Catalogs.
Technology--Manuscripts--Catalogs.
Harvard subject headings:
Manuscripts--Italy--Lombardy--Catalogs.
Science--Manuscripts--Catalogs.
Technology--Manuscripts--Catalogs.
Princeton subject headings:
Catalogs.
Manuscripts, Medieval--Italy--Lombardy--Catalogs.
Science--Manuscripts--Catalogs.
Technology--Manuscripts--Catalogs.