Thomson, A. J. and Martinet, A. V. <br/><br/>
A practical english grammar / 

 - 4th ed. 
 - New Delhi :  Oxford University;  c2010. 
 - 383p. ;  ill. ;  21 cm. 
<br/><br/><label>ISBN: </label>9780195620535 
<br/><br/><label>LC Class. No.: </label>D1472-D1499 
<br/><br/><label>Dewey Class. No.: </label>428.2  / THO