Derðegowski, Jan B. <br/><br/>
Performance on a sorting task with various modes of representation :    a cross-cultural experiment /  
by J. B. Deregowski and R. Serpell . 
 - Lusaka :    Human Development Research Unit, University of Zambia,    1971. 
 - 19, [2] leaves ;    25 cm. 
 - H.D.R.U. reports ;    no. 18 .
<br/><br/>Includes bibliographical references (leaves [20]-[21].) 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Perception in children -- Cross-cultural studies.<br/> Cognition and culture -- Zambia.<br/> Cognition and culture -- Scotland.<br/> Child study.
<br/><br/><label>Dewey Class. No.: </label>PS 155.42 ZAM