Dep. Of Official Languages. <br/><br/>
English For Better Communication. 

 - 3rd ed. 
 - Sri Lanka.  Dep. Of Official Languages.  2003 
 - 217 p. 
<br/><br/><label>ISBN: </label>9559180029 
<br/><br/><label>Dewey Class. No.: </label>372.651