Ault R L <br/><br/>
Children's cognitive development    Piaget theory and the process approach 
Ault R L 
 - N York   O U P      1977 
 - x, 193p.  cm. 
<br/><br/><label>Standard No.: </label>83,471 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>PSYCHOLOGY
<br/><br/><label>Dewey Class. No.: </label>S1:4, L71