Piaget, Jean,  1896-1980 <br/><br/>
The construction of reality in the child / 
Jean Piaget ; Transl. by Margaret Cook. 
 - New York :  Ballantine Books,  [1974]. 
 - xi, 434 p. :  ill. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Child development