By Koch, Rechard <br/><br/>
The 80/20 principle 

 - 1st 
 - New Delhi  Crown Business  2008 
 - xvi; 269p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Personal success in business
<br/><br/><label>Dewey Class. No.: </label>650.1  / KOC