Hewings, Martin. <br/><br/>
Advanced grammar in use  a self-study reference and practice book for advanced learners of English ; with answers 
Martin Hewings 
 - Cambridge, UK ;  New York  Cambridge University Press  1999 
 - ix, 294 p.  ill.  27 cm. 
<br/><br/> includes index 
<br/><br/><label>ISBN: </label>0521498686 (with answers) 0521498694 (without answers) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language--Grammar--Problems, exercises, etc.