Swan, Michael <br/><br/>
Practical english usage 
Michael Swan 
 - 2. ed. 
 - London  Oxford University  1996 
 - XXX, 658 p.  23 cm. 
<br/><br/><label>ISBN: </label>019431197X 
<br/><br/><label>Dewey Class. No.: </label>428  / SWA