Agrahari, Ravi. <br/><br/>
Science and technology for civil preliminary and main exam 

 - New Delhi :  Mcgraw Hill Book Company,  2016 
<br/><br/><label>ISBN: </label>9789355325556 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering allied operations
<br/><br/><label>Dewey Class. No.: </label>620  / AGR