Time to learn :  inventions. 

 - 65 pages :  colored illustrations ;  30 cm. 
 - Time to learn. .
 - Time to learn, no. 8. .
<br/><br/> Includes glossary 
<br/><br/> Grade School 
<br/><br/><br/>Text in English 
<br/><br/><label>ISBN: </label>9788191056563 (hbk) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Curiosities and wonders--Inventions
<br/><br/><label>Dewey Class. No.: </label>030 T482 2017