Deregowski, Jan B. <br/><br/>
Perception of depicted orientation /    
Jan B. Deregowski. 
 - Lusaka :   Human Development Research Unit ,   1968. 
 - 21 p. 
 - H. D. R. U. reports;   10 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Comprehension--------<br/>Drawing, Psychology of--------