Ekman Paul <br/><br/>
Why Kids Lie How Parents Can Encourage Truthfulness By Paul Ekman With Mary Ann Mason Ekman And Tom Ekman 

 -  New York : Penguin Books 1991 
 - 206 
<br/><br/><br/>Eng 
<br/><br/><label>ISBN: </label>014014322X (Pbk)