The world of machines. 

 - 2nd ed. 
 - London :  Macmillan,  c 1986. 
 - 64 p. :  ill. ;  28 cm. 
 - Look it up, 12. .
<br/><br/> Includes index. 
<br/><br/>314  314 
<br/><br/><label>ISBN: </label>0 333 39730 4 0 333 39568 9 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Machinery -- Juvenile literature.<br/> Machinery.
<br/><br/><label>Dewey Class. No.: </label>032 / L872r