The drawings of Leonardo da Vinci in the collection of Her Majesty the Queen at Windsor Castle 2nd ed., revised with assistance of Carlo Pedretti; [in 3vols]
Leonardo,da Vinci,1452-1519.
Clark, Kenneth,1903-1983.
Pedretti, Carlo.
London Phaidon,
1968
Previous ed. published in 2 vols as 'A catalogue of the drawings of Leonardo da Vinci in the collection of His Majesty the King at Windsor Castle'. Cambridge: Cambridge U.P., 1935
Leonardo, da Vinci, 1452-1519.
Windsor Castle. Royal Library.