Columbia subject headings:
Leonardo, da Vinci, 1452-1519. Mona Lisa.
Painting--Expertising.
Harvard subject headings:
Leonardo, da Vinci, 1452-1519--Authorship.
Leonardo, da Vinci, 1452-1519. Mona Lisa.
Painting--Expertising
Princeton subject headings:
Leonardo, da Vinci, 1452-1519. Mona Lisa.
Painting--Expertising.