Vashist, Ashish Kumar <br/><br/>
One thousand plus questions on general science   general studies for civil services preliminary examinations - paper I 
Ashish Kumar Vashist and Ramesh Singh 
 - New Delhi  Tata Mc Graw Hill Education  2012 
 - Various pagination 
<br/><br/><label>ISBN: </label>9781259001253 
<br/><br/><label>Subjects--Index Terms: </label>General science - Civil service general studies paper 
<br/><br/><label>Universal Decimal Class. No.: </label>(079.1):35  / VAS  R