Koch, Richard. <br/><br/>
The 80/20 principle :  the secret of achieving more with less / 
 Eighty-twenty principle 
Richard Koch. 
 - New York :  Doubleday Publishing  2008 
 - 269 p. :  ill. ;  21 cm. 
<br/><br/>Bibliography: p. 257-265 
<br/><br/><label>ISBN: </label>9780385491747 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Time management<br/>Conduct of life<br/>Industrial efficiency--Psychological aspects<br/>Labor productivity --Psychological aspects
<br/><br/><label>Dewey Class. No.: </label>650.1