Hart, Ivor Blashka <br/><br/>
The world of Leonardo da Vinci: man of science, engineer and dreamer of flight. 
Ivor Hart Blashka 
 - London  Macdonald  1961 
 - xiv, i374p.: ill., diagr. 
<br/><br/><label>LC Class. No.: </label>Q 143.L5