Palmer, Richard <br/><br/>
Good grammar guide 

 -  Routledge & Kegan Paul Ltd., London  2003 
 - 198 
<br/><br/><label>ISBN: </label>0415312264 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English structural system
<br/><br/><label>Dewey Class. No.: </label>425  PAL-G