Ruth L. Ault <br/><br/>
Children`s cognitive development : Piaget`s theory and the process approach 

 - New York  Oxford University Press  1977 
 - 193p 
<br/><br/>Ruth L. Ault: Children`s cognitive development : Piaget`s theory and the process approach.  New York.  Oxford University Press, 1977.--(649AUL)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>Dewey Class. No.: </label>649  / AUL