N Arumugam <br/><br/>
Concepts of ecology 

 - 3rd ed 
 - Saras, Nagercoil  1988 
 - x,430p 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>Sociology
<br/><br/><label>Dewey Class. No.: </label>301.3 Aru