Kohn, Alfie. <br/><br/>
Punished by rewards : the trouble with gold stars, incentive plans, A?s, praise, and other bribes / Alfie Kohn ; with a new afterword by the author. 

 - Boston : Houghton Mifflin Co., 1993.  Boston : Houghton Mifflin Co., 1993. 
 - xiv, 431 p. ; 23 cm. 
<br/><br/><label>ISBN: </label>0618001816 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Reward (Psychology), Motivation (Psychology)