Toffler, Alvin. <br/><br/>
Powershift :  Knowledge, wealth, and violence at the edge of the 21st century / 
Alvin Toffler. 
 - New York :  Bantam Books,  1990. 
 - xxii, 585 p. 
<br/><br/><label>ISBN: </label>0553057766 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sociology