Kapeller, Ludwig,  1892- <br/><br/>
Der blaue zettel,  kriminalroman. 

 - Hamburg,  Hammerich & Lesser  [1943] 
 - 238, [1] p.  19 cm. 
<br/><br/><label>LCCN: </label>af 47001949  
<br/><br/><label>LC Class. No.: </label>PT2621.A56  / B5 
<br/><br/><label>Dewey Class. No.: </label>833.91