Karsavvidis, Ilias <br/><br/>
Learning to solve correlational problems:  a study of the social and material sistribution of cognition/ 
Ilias Karsavvidis 
 - Enschede:  Twenty University  1970. 
 - xiii, 219p.:  ill.;  23 cm. 
<br/><br/> includes appendix and bibliographical references. 
<br/><br/><label>ISBN: </label>9036512611 
<br/><br/><label>LC Class. No.: </label>DUCE BF723.C5K765