Murphy , Raymond.  <br/><br/>
Intermediate english grammar murphy , raymond 

 - 1st edition. 
 - New delhi :   Cambridge   2009. 
 - 350.  
<br/><br/><label>ISBN: </label>978-81-8561-851-7  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering,
<br/><br/><label>Dewey Class. No.: </label>420  / MUR