Homme, Lloyd E. <br/><br/>
How to use contingency contracting in the classroom 
Lloyd Homme, with Attila P. Csanyi, Mary Ann Gonzales, and James R. Rechs ; introduction by Wesley C. Becker. 
 - Rev. ed. 
 - Champaign, Ill.  Research Press  c1970. 
 - xi, 130 p.  ill.  23 cm. 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>087822050X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Classroom management<br/>Behavior modification<br/>Reinforcement Psychology