Beard, Ruth Mary. <br/><br/>
An outline of Piaget's developmental psychology for students and teachers, 
by Ruth M. Beard. 
 - London,  Routledge & K. Paul,  1969. 
 - xvi, 128 p.  illus.  19 cm. 
<br/><br/><label>ISBN: </label>0710063407 
<br/><br/><label>LCCN: </label>75386277  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Child psychology.
<br/><br/><label>LC Class. No.: </label>BF721  / .B33 
<br/><br/><label>Dewey Class. No.: </label>370.15