Shepherd, John <br/><br/>
Active context English : book one (with tacher's notes) 

 - London  Macmillan  1971 
 - 208 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>LENGUA INGLESA<br/>ENSEÑANZA DE LA LENGUA<br/>ESTUDIO DEL LENGUAJE