Halliday, M. A. K. <br/><br/>
Spoken and written language 

 - 2nd ed 
 - Oxford  Oxford University press  1990 
 - 109 p 
 - Language education .
<br/><br/><br/>Inglés 
<br/><br/><label>ISBN: </label>0-19-437153-0 
<br/><br/><label>Subjects--Topical Terms: </label><br/>/LINGUISTICA/INGLES-USO; EXPRESION ORAL Y ESCRITA/REVISADO/