Sokel, Walter Herbert 1917-.
The writer in extremis: expressionism in twentieth-century German literature /
Walter H. Sokel 
. - New York : Toronto : London : McGraw-Hill book company,  1964 
. - 251 p.  20 cm. 
 - (McGraw-Hill paperbacks )
<br/>К.: Бібліогр. : c. 233-244, Index