Inventions / 

 - Chicago, IL:  World Book, Inc., a Scott Fetzer Company,  c2017. 
 - 32 pages :   color illustrations ;   31 cm 
 - World Book's learning ladders .
<br/><br/> Part of the learning ladders series -a collection of educational books designed for young learners. includes glossary and index.  
<br/><br/><label>ISBN: </label>9780716679486 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Inventions --Inventions Juvenile literature
<br/><br/><label>Dewey Class. No.: </label>J 608 INVE