Columbia subject headings:
Cartography--Italy--History.
Cartography.
Leonardo, da Vinci, 1452-1519.
Harvard subject headings:
Cartography--Italy--History--15th century.
Cartography--Italy--History--16th century.
Leonardo, da Vinci, 1452-1519--Knowledge--Cartography.
Princeton subject headings:
Cartography--Italy--History.
Leonardo, da Vinci, 1452-1519--Contributions in cartography.