Canfield, Jack <br/><br/>
The power of focus / 
Jack Canfield, Mark Victor Hansen, Les Hewitt 
 - Deerfield :  Health communication,  2000       
 - xxi, 310 p. 
<br/><br/><label>ISBN: </label>1558747524 
<br/><br/><label>LC Class. No.: </label>BF 637 C222p 2000