The 80/20 principle  the secret of achieving more with less 
Richard Koch.  
 - London  Nicholas Brealey  1997.  
 - x,302p.  ill.  24cm. 
<br/><br/>Includes bibliographical references and index.  
<br/><br/><label>ISBN: </label>1857881672 9781857881677 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Life skills.<br/>Organizational effectiveness.<br/>Self-culture.<br/>Success in business.<br/>Life skills. 22 <br/>Effectiviteit. gtt <br/>Wetmatigheden. gtt