Drucker, Peter F., <br/><br/>
The Age Of Discontinuity  Guidelines to our Changing Society 
Peter F. Drucker 
 - London :  Pan Books LTD,  c1969. 
 - 476 p.: 
 -  Management Series .
<br/><br/><label>ISBN: </label>0330026933 
<br/><br/><label>Dewey Class. No.: </label>658.00  / DRU/AGE