Singh, Surender <br/><br/>
General studies for civil services preliminary examination 2021 :  GS Paper-1 / 
by Surender Singh and Virinder Parmar 
 - Chennai:  McGraw Hill Education,  2021 
 - xxix, varies.;  26cm. 
<br/><br/><label>ISBN: </label>9789390219063 
<br/><br/><label>Subjects--Topical Terms: </label><br/>General studies-Competitive exams
<br/><br/><label>Dewey Class. No.: </label>001  / SIN-GE