Gerhardus, Maly & Gerhardus, Dietfried <br/><br/>
Cubism and futurism : the evolution of the self-sufficient picture 

 - Phaidon, Oxford  1977 
 - 96 
<br/><br/><label>ISBN: </label>0-7148-1953-0 
<br/><br/><label>Dewey Class. No.: </label>759.06 Ger/Ger