Trefry, Gregory. <br/><br/>
Casual game design :  designing play for the gamer in all of us / 
Gregory Trefry. 
 - Burlington, MA :  Oxford :  Morgan Kaufmann/Elsevier,  2010. 
 - xviii, 245 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references and index. 
<br/><br/><label>ISBN: </label>9780123749536 (pbk.) 0123749530 (pbk.) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Computer games--Design<br/>Computer games--Programming
<br/><br/><label>Dewey Class. No.: </label>794.81  / TRE 2010