Perspectives in communicative language teaching / 
edited by Keith Johnson and Don Porter 
 - London :  Academic Press,  1983 
 - 231 p. ;  25 cm. 
<br/><br/><label>ISBN: </label>0123875803 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Communication--Philosophy<br/>Interpersonal communication<br/>Communication--Social aspects