Arumugam, N <br/><br/>
Concepts of ecology: Environmental biology 

 -  Saras Publication, Nagaercoil  2003 
 - 424 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology; Biology
<br/><br/><label>Dewey Class. No.: </label>574.5  ARU-C