Leuinson P <br/><br/>
Soft edge: natural history and future of the information reuolution 
Leuinson P 
 - London  London, Routledge  1997 
 - 275p 
<br/><br/><label>ISBN: </label>0-1-415-15785-4 
<br/><br/><label>Source: </label>Textbook