Piaget, Jean <br/><br/>
Psychology and epistemology 

 - New York  Grossman Publishers  1971 
 - 166p.  22cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cognition (Child psychology)
<br/><br/><label>LC Class. No.: </label>BF723.C5P5313