Updegraff, Ruth <br/><br/>
Visual perception of distance in young children and adults: A comparative study 

 - Iowa  University of Iowa  193 
 - 102p 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Visual perceptionVisual perce
<br/><br/><label>Dewey Class. No.: </label>153.733 UPD