Columbia subject headings:
Milan (Italy)--Imprints.
Printing--Italy--Milan--History.
Publishers and publishing--Italy--Milan--History.
Harvard subject headings:
Milan (Italy)--Imprints.
Printing--Italy--Milan--History.
Publishers and publishing--Italy--Milan--History.
Princeton subject headings:
Milan (Italy)--Imprints.
Printing--Italy--Milan--History.
Publishers and publishing--Italy--Milan--History.