Jones, Leo <br/><br/>
Progress towards first certificate : student's book 

 - London  Cambridge University  1983 
 - 164 p. : il 
<br/><br/><br/>Inglés 
<br/><br/><label>ISBN: </label>0521-28950-5 
<br/><br/><label>Subjects--Topical Terms: </label><br/>/LINGUISTICA/INGLES-USO; LIBROS DE TEXTO/REVISADO/