Singh, Ashok Kumar <br/><br/>
Science & tecnology  for civil services examinations 

 - New Delhi  TMH  2009 
 - viii, 646p 
 - TATA McGraw Hill's series .
<br/><br/><label>ISBN: </label>9780070655485 
<br/><br/><label>Subjects--Index Terms: </label>Science & tecnology - competition examination guide  Competition examination guide - Science & tecnology 
<br/><br/><label>Universal Decimal Class. No.: </label>(079.1):5/6  R  / SIN