Kelty Christopher M. <br/><br/>
Two bits: the cultural signifiance of free software 

 - U.S.A.  Duke university  2008 
 - 378p. 
<br/><br/><label>ISBN: </label>9780-822-342649 
<br/><br/><label>Dewey Class. No.: </label>303.4833  KEL