Fredrickson, Barbara <br/><br/>
Positivity : groundbreaking research to release your inner optimist and thrive 

 - London :  Oneworld  2011 
 - 277 p. ; 20 cm. (pbk) 
<br/><br/><label>ISBN: </label>1851687904 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Psychology
<br/><br/><label>Universal Decimal Class. No.: </label>158.1