Hans Erni 

 - New Delhi:  National Gallery of Modern Art,  1991. 
 - 76p.;  ill.  28cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Erni,Hans,1909-2015
<br/><br/><label>Dewey Class. No.: </label>709.2  / HAN