Ravu, Nagasera E <br/><br/>
Paristhroyikayavum Lokam / 
by E Nagasewara Ravu 
 - Madras:  Janatha Press,  1989 
 - p.111 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology<br/>Environmental Studies
<br/><br/><label>Dewey Class. No.: </label>577  / RAV-P