Das, Amar <br/><br/>
Help to the study of WBCS (Executive) main examination/ 
Amar Das 
 - 19th rev.ed. 
 - Kolkata:  Oriental book  2012. 
 - Various pages.;  24x19 cm. 
<br/><br/><label>ISBN: </label> :Rs 640 
<br/><br/><label>Subjects--Topical Terms: </label><br/>WBCS EXAMINATION
<br/><br/><label>Dewey Class. No.: </label>351.076  / DAS-WBCS/CAR