Loehr, Jim <br/><br/>
The power of full engagement :  managing energy, not time, is the key to high perfomance and personal renewal / 
Jim Loehr and Tony Schwartz 
 - New York :  Free press,  2003       
 - x, 245 p. 
<br/><br/><label>ISBN: </label>0743226747 
<br/><br/><label>LC Class. No.: </label>BF 637 L825p 2003