"Hewings, M." <br/><br/>
Advanced English grammar with answers / 
M. Hewings 
 - New Delhi:  "Cambridge U.P,"  2017 
 - 340 p. 
<br/><br/><label>ISBN: </label>8175960671 
<br/><br/><label>Dewey Class. No.: </label>420  / HEW