Ecke, Wolfgang <br/><br/>
Be a super sleuth with the case of the invisible witness / 
Wolfgang Ecke ; illustrated by Rolf Rettich ; translated from the German by Stella and Vernon Humphries 
 - London :  Methuen Children's Books ,  ©1980,  1980. 
 - 141 pages :  illustrations ; jacket ;  18 cm 
 - Super Sleuth Series .
<br/><br/><label>ISBN: </label>0416893309 (hardback) 
<br/><br/><label>Index Terms--Genre/Form: </label><br/>Youth Fiction<br/> Suspence Fiction<br/>Short Stories Fiction<br/>Detective and mystery fiction
<br/><br/><label>Dewey Class. No.: </label>ETF ECKE