Ayllon, Teotoro <br/><br/>
The token economy  a motivational system for therapy & rehabilitation 

 - New York  Meredith  1968 
 - viii,288p 
<br/><br/><label>ISBN: </label>3900813109 
<br/><br/><label>Subjects--Topical Terms: </label><br/>DISEASES
<br/><br/><label>Dewey Class. No.: </label>616.891  / A94