Biber, Douglas  <br/><br/>
Longman  : student grammar of sopken and written English 
Douglas Biber and Susan Conrad, Geoffrey Leech 
 - New Delhi:   Person education Ltd,   2010. 
 - vii, 487p.  
<br/><br/><label>ISBN: </label>9788131733394 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English language- Grammar <br/>English language - Writing english<br/>ERC
<br/><br/><label>Dewey Class. No.: </label>425  / BIL