Ayllon, Teodoro <br/><br/>
Token economy;  a motivational system for therapy and rehabilitation / 
by  Teodoro Ayllon and Nathan Azrin. 
 - 2nd ed. 
 - New York,  Appleton-Century-Crofts,  1968. 
 - 288p.: 
 - The Century psychology series .
<br/><br/>Bibliography: p. 271-279. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Token economy (Psychology)
<br/><br/><label>Dewey Class. No.: </label>616..8914  / AYL