Hewings, Martin. <br/><br/>
Advanced English Grammar (With Answers). 

 - 2nd Ed. 
 - New Delhi :  Cambridge University Press,   1999. 
 - ix, 340 p. 
<br/><br/><label>ISBN: </label>8175960671 
<br/><br/><label>Dewey Class. No.: </label>425  / HEW