Ward, Ann <br/><br/>
Open doors  teacher's book 1 
Ann Ward and Norman Whitney 
 - 9th ed. 
 - Oxford  Oxford University Press  1998 
 - 162 p.  29 cm. 
<br/><br/><label>ISBN: </label>0194356027 
<br/><br/><label>Dewey Class. No.: </label>428 WAR