Picasso, Pablo,  1881-1973. <br/><br/>
Picasso :  graphic works. translated by Norbert Guterman.  [Vol.2],  1955-1965 / 
introduction by Kurt Leonhard ; biography and documentation by Hans Bolliger 
 - London :  Thames and Hudson,  1967. 
<br/><br/> Originally published by Verlag Gerd Hatje, Stuttgart, 1966.