Vernon Walter M. <br/><br/>
Motivating children : Behavior modification in the classroom 

 - New York, USA  Holt, Rinehart and Winston   1972 
 - vii,87p. 
<br/><br/><label>Source: </label>Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Education - Psychology