Walker, Stephen <br/><br/>
Learning and Reinforcemnt 

 - London:  Methen,   1984. 
 - 144p.;  18 cm 
<br/><br/><label>ISBN: </label>0 416 82790 x 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Learning<br/>Education
<br/><br/><label>Dewey Class. No.: </label>370.1523  / WAL