Petroski, Henry. <br/><br/>
The Evolution of useful things :  how everyday artifacts-from forks and pins to paper clips and zippers-came to be as they are / 

 - New York  Vintage  1994 
 - 304 p. ;  21 cm. 
<br/><br/><label>ISBN: </label>9780679740391 (paperback) 
<br/><br/><label>Dewey Class. No.: </label>609.20  / PET-T