Machines & inventions. 

 - Alexandria, Va. :  Time-Life,  [c1993]. 
 - 151 p. :  col. ill. ;  31 cm. 
 - Understanding science & nature .
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>0809497042 0809497042 9780809497041 9780809497058 
<br/><br/><label>LCCN: </label>92035710  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Machinery--Juvenile literature.<br/>Inventions--Juvenile literature.<br/>Discoveries in science--Juvenile literature.
<br/><br/><label>LC Class. No.: </label>TJ147  / .M22  
<br/><br/><label>Dewey Class. No.: </label>621.8