Reinforcement :  An enduring problem in psychology : Selected readings. / 
Ed. by Robert C. Birney and Richard C. Teevan. 
 - Princeton, N.J. :  Van Nostrand,  [1961]. 
 - 230 p. :  ill. 
 - An Insight book  3 E .
<br/><br/>Includes bibliogr. references 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Reinforcement (Psychology)