Sharma,Mohit <br/><br/>
IAS mains general studies paper 3: technology, economic development, biodiversity, environment, security & disaster management with previous years questions 2018-13 

 - New delhi  Arihant publications (I) limited  2019 
 - v.p. 
<br/><br/><label>ISBN: </label>9789313168119 
<br/><br/><label>Dewey Class. No.: </label>001  Ar42I