Gupta's R. <br/><br/>
IFS Main Examination : Zoology Paper 1 and 2 

 - New Delhi  Ramesh Publishing House  2019 
 - 456p 
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>81-7812-937-2 
<br/><br/><label>Dewey Class. No.: </label>153.94591  / GUP