Columbia subject headings:
Leonardo, da Vinci, 1452-1519--Manuscripts.
Leonardo, da Vinci, 1452-1519.
Manuscripts, Italian.
Melzi, Francesco, 1491 or 1493-approximately 1570.
Harvard subject headings:
Leonardo, da Vinci, 1452-1519--Friends and associates.
Leonardo, da Vinci, 1452-1519--Manuscripts.
Melzi, Francesco, 1491 or 1493-approximately 1570
Princeton subject headings:
Leonardo, da Vinci, 1452-1519--Manuscripts.
Leonardo, da Vinci, 1452-1519.
Manuscripts, Italian.
Melzi, Francesco, 1491 or 1493-approximately 1570.