The psychology of learning and motivation :  Advances in Research and Theory / 

 - Volume 2 
 - xi, 249 pages :  ill. ;  24 cm. 
<br/><br/><label>ISBN: </label>0125433026 
<br/><br/><label>LCCN: </label>2023278657 
<br/><br/><label>LC Class. No.: </label>BF683  / .P78 1968