Inventions 

 - 65 pages :  color illustrations ;  28 cm 
 - Time to learn ; #15 .
 - Time to learn ; #15. .
<br/><br/> Includes glossary 
<br/><br/> Primary 
<br/><br/><label>ISBN: </label>9788191056563 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Inventions--History--Juvenile literature
<br/><br/><label>Dewey Class. No.: </label>608