Living in the classroom :  the currency-based token economy / 
by James S. Payne...(et al.) 
 - New York :  Human Sciences Press,  1975. 
 - x, 202 p. :  ill. ;  21 cm. 
<br/><br/>Bibliography: p. 185-202. 
<br/><br/><label>ISBN: </label>087705276X 
<br/><br/><label>LCCN: </label>75-019004 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Performance contracts in education.<br/>Classroom management.