S.R.  Inthira  V.Saraswathi <br/><br/>
Enrich Your english  Book 2 : Academic Skills 

 - New Delhi  Oxford University Press  1995 
<br/><br/><label>ISBN: </label>0-19-563054-8 
<br/><br/><label>Dewey Class. No.: </label>428  / INT/E