Agrawal, Roma  <br/><br/>
Nuts and Bolts:   Seven Small Inventions That Changed the World in a Big Way 

 -  W.W. Norton & Company 
 - 288 pages 
<br/><br/><label>ISBN: </label>978-1324021520 
<br/><br/><label>LC Class. No.: </label>T173.8 .A37