SUNDEL, Martin, <br/><br/>
Behavior modification in the human services :  a systematic introduction to concepts and applications / 
Martin Sundel and Sandra Stone Sundel. 
 - New York :  Wiley,  c1975 
 - xii, 283 p. :  ill. ; 
<br/><br/> Includes bibliographies and index. 
<br/><br/><label>ISBN: </label>0471835668 
<br/><br/><label>Dewey Class. No.: </label>150.1943