Ruth M. Beard <br/><br/>
An Outline of Piaget's Psychology for Students and Teachers 

 - London  Routledge & Kegan Paul  1969 
 - 128p  18cm 
<br/><br/><label>ISBN: </label>0710063407 
<br/><br/><label>Dewey Class. No.: </label>155.41 B368o