Newing, F.E <br/><br/>
Levers pulleys and engines 

 - Loughborough  Ladybird  1963 
 - 50p   
 - A Ladybird Junior Science Book, 621 .
<br/><br/><label>ISBN: </label>072140121X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>LANGUAGE
<br/><br/><label>Dewey Class. No.: </label>428  / NEW