McDonald,Nell <br/><br/>
Rudolf Spielmann Master of Invention 

 - Everyman Publishers  London  2006 
 - 143p  1 
 - 2023-12-01 
<br/><br/><label>ISBN: </label>1-85744-406-X 
<br/><br/><label>Nat. Bib. No.: </label>0008171 
<br/><br/><label>Nat. Bib. Agency Control No.: </label>MCD 
<br/><br/><label>Universal Decimal Class. No.: </label>794.2