Aspects of the development of competence 

 - Hillsdale, N.J:  L. Erlbaum Associates,  1981 
 - x, 270 p. : ill. ; 24 cm 
<br/><br/><label>ISBN: </label>9780898590708 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cognition in children - Congresses
<br/><br/><label>Dewey Class. No.: </label>155.413 COL