Parker, Steve.  1952- <br/><br/>
1920-1940 science for the people - (Twentieth century science and technology) / 
Steve Parker. 
 - London:  David West Childrens Books,  2000. 
 - 32p.:  col ill.; 
<br/><br/> includes index. 
<br/><br/><label>ISBN: </label>0431121915 9780431121918 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Technology. Science.  20th Century. --History.--Juvenile literature.
<br/><br/><label>Dewey Class. No.: </label>609.042