Palm, Erwin Walter. <br/><br/>
Zu Goyas Capricho 56 /  
Erwin Walter Palm. 
 - Aachen :   [s.n.],   1971. 
 - P. 20-26 :   il. ;   30 cm. 
<br/><br/> Separata de: Band 41 der Aachener Kunstblätter, Aachen, 1971.  Ded. autógr. del autor.  Legado Lafuente Ferrari. 
<br/><br/><label>Subjects--Personal Names: </label><br/>Goya, Francisco de  (1746-1828) 
<br/><br/><label>Universal Decimal Class. No.: </label>76 Goya, Francisco de