Pratt, George J., <br/><br/>
Code to joy :  the four-step solution to unlocking your natural state of happiness / 
George Pratt and Peter Lambrou, with John David Mann. 
 - First edition 
 - vii, 248 pages ;  24 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>9780062063151 
<br/><br/><label>LCCN: </label>2011024396 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Happiness.<br/>Joy.<br/>Positive psychology.<br/>Self-actualization (Psychology)
<br/><br/><label>LC Class. No.: </label>BF575.H27  / P735 2012 
<br/><br/><label>Dewey Class. No.: </label>158.1