Deregowski, Jan B. <br/><br/>
Perception of the two-pronged trident by two- and three-dimensional perceivers. 

 - [Lusaka] :  University of Zambia, Human Development Research Unit,  1969. 
 - Zambia. University. Human Development Unit. Reports ;  no. 11 .
 - University of Zambia. Human Development Unit. Reports ;  University of Zambia. Human Development Unit. Reports ;  University of Zambia. Human Development Unit. Reports ;  no. 11 .
<br/><br/><label>Subjects--Topical Terms: </label><br/>Apperception -- Testing.--Apperception -- Testing.<br/>Perception -- Testing.--Perception -- Testing.