Piaget, Jean <br/><br/>
Origin of the idea of chance in children / 
by Jean Piaget and Barben Inhelder 
 - London :  Routledge and Legan Paul,  1951. 
<br/><br/><label>ISBN: </label>0710082002 
<br/><br/><label>Subjects--Index Terms: </label>Experimental Psychology - Child Psychology