Langford, Peter <br/><br/>
El desarrollo del pensamiento conceptual en la escuela secundaria 
Peter Langford ; translated by Silvia Hovath and Alejandro Pareja. 
 - Barcelona  Ediciones Paidós  c1990. 
 - 191 p.  ill. 
 - Temas de Educacion  20 .
<br/><br/> Translation of: Concept development in the secondary school.  Includes index. 
<br/><br/>Bibliography: p. [159]-184. 
<br/><br/><label>ISBN: </label>8475096093 
<br/><br/><label>LCCN: </label>buc92000541   
<br/><br/><label>Subjects--Topical Terms: </label><br/>Learning, Psychology of<br/>Adolescent psychology<br/>Concept learning.
<br/><br/><label>LC Class. No.: </label>LB1062  / .L3518 
<br/><br/><label>Dewey Class. No.: </label>370.15/2