Skinner , Charles <br/><br/>
Educatonal psychology 

 - Delhi  Prentice hall  1984 
 - 755 p.  PB  24 cm. 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Education
<br/><br/><label>Dewey Class. No.: </label>370.15  / SKI