Walker, Michael <br/><br/>
New horizons in English 
/ Michael Walker, Lars Mellgren. 
 - United States of America  : Addison-Wesley  , c1991. 
 - 6 vols.  : il. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ingles--- Estudio y Enseñanza
<br/><br/><label>Dewey Class. No.: </label>428.24 WAL