Johns, Helen. <br/><br/>
Happiness, economics and public policy / 
Helen Johns and Paul Ormerod. 
 - 1st  ed. 
 - London :  IEA,  2007. 
 - 109  p. 
<br/><br/><label>ISBN: </label>0255366007 : 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Political planning.<br/>Happiness.