Daniels A C <br/><br/>
Bringing out the best in people: how to apply the astonishing power of positive reinforcement 
Daniels A C 
 - New York  New York, McGraw-Hill  1999 
 - 245p 
<br/><br/><label>ISBN: </label>0-07-135145-0 
<br/><br/><label>Source: </label>Textbook