MARTINET, A.V. THOMSON, A.J. <br/><br/>
PRACTICAL ENGLISH GRAMMAR 

 - 4th Ed. 
 - DELHI  Oxford University Press, Delhi   1993 
<br/><br/><label>ISBN: </label>0 19 562053 4 
<br/><br/><label>Dewey Class. No.: </label>425  / THO/PR