Columbia subject headings:
Harvard subject headings:
Industrial museums--Italy--Milan--Guidebooks.
Leonardo, da Vinci, 1452-1519--Knowledge--Mechanical engineering.
Mechanical engineering--Early works to 1800
Museo nazionale della scienza e della tecnica "Leonardo da Vinci"--Guidebooks.
Princeton subject headings:
Leonardo, da Vinci, 1452-1519--Knowledge--Mechanical engineering.
Mechanical engineering--Early works to 1800.
Museo nazionale della scienza e della tecnica "Leonardo da Vinci"