Díaz Berdecía, Nelson, <br/><br/>
Toward a standardization  pictorial cognitive developmental scale 
by Nelson Díaz Berdecía. 
 - Ponce, P. R.: Universidad Católica de Puerto Rico. Colegio de Educación  1991. 
 - 22 [3] p.  ill. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Cognitive abilities test.<br/>Cognition--Testing.<br/>Intelligence tests