Ellis,Robert. S <br/><br/>
Educational Psychology: A Problem Approch 

 - London:  D.Van Nostrand Company,Inc,  1951. 
 - xi,546p.;  23 cm 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Educational Psychology<br/>Problem solving
<br/><br/><label>Dewey Class. No.: </label>370.15  / ELL