Cooper, Robert L.  <br/><br/>
Language planning and social change 
/  by Robert L. Cooper 
 - Cambridge;   Cambridge University Press,  1989. 
 - viii, 216 pages : illustrations ; 24 cm 
<br/><br/><label>ISBN: </label>0521336414 
<br/><br/><label>Dewey Class. No.: </label>404.2  / COO/L