Vallentin, Antonina 1893-1957.
Leonardo da Vinci: paintings and drawings /
Antonina Vallentin 
. - London : Methuen and Co Ltd, New York : Tudor Publishing Co.,  1970 
. - [16] p., 15 l.  ill.  15 cm. 
<br/><br/><label>Subjects--Personal Names: </label><br/>Leonardo da Vinci  1452-1519