Langford, Peter. <br/><br/>
Concept development in the primary school /  / 
Peter E. Langford. 
 - London :  Croom Helm,  1987 
 - 133 p. :  ill. 
<br/><br/><label>ISBN: </label>0709941625 :  18.95 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Thought and thinking--Study and teaching.<br/>Cognition in children.
<br/><br/><label>LC Class. No.: </label>LB1590.3  / .L36 1987