Kumar H D <br/><br/>
Modern concepts of ecology 

 - 8th rev. 
 - New Delhi  Vikas publishing house  1995 
 - 478p. 
<br/><br/><label>ISBN: </label>0706986768 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Energetics<br/>World biota<br/>Biosphere pollution
<br/><br/><label>Dewey Class. No.: </label>577.27  / KUM