Language in the USA / 
edited by Charles A. Ferguson and Shirley Brice Heath ; with the assistance of David Hwang ; foreword by Dell H. Hymes. 
 - Cambridge [Eng.] ;  Cambridge University Press,  1981. 
 - xxxviii, 592 p. ; 
<br/><br/> Includes index. 
<br/><br/><label>ISBN: </label>052123140X 
<br/><br/><label>Dewey Class. No.: </label>409.73  / La