Verma P S <br/><br/>
Biology: Science for ninth class, part- 3 

 - New Delhi, India  S Chand and Company  1980 
 - 357p. 
<br/><br/><br/>Gifted by Rekha Bhaskar 
<br/><br/><label>ISBN: </label>981-01-9135-9 
<br/><br/><label>Source: </label>Textual