First how things work encyclopedia :  a first reference book for children. 

 - London :  Dorling Kindersley Limited  2019. 
 - 136 p. :  illustrations. 
 - First reference .
<br/><br/> Key Stage 1.  Key Stage 2. 
<br/><br/><label>ISBN: </label>9780241416334 (PDF ebook) :  £9.99  £9.99 9780241416327 (ebook) :  £9.99 
<br/><br/><label>Source: </label>PenguinGroup470710  Ingram Content Group 
<br/><br/><label>Nat. Bib. No.: </label>GBB985202  bnb 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Science--Juvenile literature.
<br/><br/><label>Dewey Class. No.: </label>500