Swan, Michael <br/><br/>
Practical English Usage 

 - 2 
 - Delhi  Oxford University Press  1980 
 - 654 
<br/><br/><label>ISBN: </label>0194421465 
<br/><br/><label>Publisher. No.: </label> Intel Book Distributors 
<br/><br/><label>Subjects--Personal Names: </label> English 
<br/><br/><label>Subjects--Topical Terms: </label><br/>English