Zichermann, Gabe <br/><br/>
the gamification revolution:how leaders leverage game mechanics to crush the competition 

 - new york :  mcgraw hill education ,  2013 
 - 235 p. ;  23.5 cm 
<br/><br/><label>ISBN: </label>9780071808316 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Management and auxiliary service
<br/><br/><label>Dewey Class. No.: </label>658  / ZIC