Favell, Judith E. <br/><br/>
The power of positive reinforcement :  A handbook of behavior modification / 
By Judith Elbert Favell. 
 - Springfield, Ill. :  Thomas,  1977. 
 - xxi, 266 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliogr. references and index 
<br/><br/><label>ISBN: </label>0398036209 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Behavior modification--Handbooks, manuals, etc.