Koster, Raph,  <br/><br/>
A Theory of Fun for Game Design/ 
Raph Koster 
 - 2nd ed 
 - USA:  Raph Koster  2014 
 - 279p 
<br/><br/><label>ISBN: </label>971449363215 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mutimedia & Gaming
<br/><br/><label>Dewey Class. No.: </label>794.8  / KOS