Richard Koch <br/><br/>
The 80/20 Principle 

 - New York  Doubleday  1998 
 - 277 p 
<br/><br/><label>ISBN: </label>0-385-49174-3 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Time Management
<br/><br/><label>LC Class. No.: </label>HD69.T54K63