Aaseng, Nathan. <br/><br/>
Twentieth-century inventors / 
Nathan Aaseng. 
 - New York :  Facts on File,  1991. 
 - 132 p. :  ill. 
 - American profiles .
<br/><br/>Includes bibliographical references. 
<br/><br/> Provides accounts of 10 significant twentieth-century inventions and the people behind them. 
<br/><br/><label>ISBN: </label>0816024855 
<br/><br/><label>LCCN: </label>90046547 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Inventors--Biography.
<br/><br/><label>Dewey Class. No.: </label>920