Julika, P. K, Etc <br/><br/>
General science for civil services(IAS)preliminary exam. / 

 - 4th ed. 
 - New Delhi :  IIMS publications ,  1999-2000. 
 -  28cms 
<br/><br/><label>ISBN: </label>8176030562 
<br/><br/><label>Subjects--Index Terms: </label>Generalia