Agrahari, Ravi P.  <br/><br/>
Science and Technology: for civil services preliminary and main examinations 

 - 3rd Ed. 
 -  Mc Grawhill Education (india) Pvt. Ltd., Chennai  2020 
 - xxii, E.13 p.          
<br/><br/><label>ISBN: </label>97 89 35 31 67 684  585 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Competitive Examinations
<br/><br/><label>Dewey Class. No.: </label>600 AGR