Swan, Michael <br/><br/>
Practical english usage 

 - 3rd Ed.; 
 - New Delhi :  Oxford University Press,  2005. 
 - 653p.;  25cm 
<br/><br/><label>ISBN: </label>9780195679892 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Practical English<br/>English Language
<br/><br/><label>Dewey Class. No.: </label>425  / SWA