Nicholl, Charles.
Leonardo da Vinci: flights of the mind : a biography /
Charles Nicholl 
. - New York : Viking,  2004 
. - xiv, 622 p.  ill.  24 cm. 
<br/>К.: Бібліогр. : c. 503-580, Index 
<br/><label>  ISBN: </label>0-670-03345-6 
<br/><br/><label>Subjects--Personal Names: </label><br/>Leonardo da Vinci 1452-1519