Kumar, H.,D. <br/><br/>
Modern Concepts of Ecology /  
by H. D. Kumar  
 - New Delhi :   Vikas Publishing House,   1983 
 - p.293 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology<br/>Ecology<br/>Environmental Biology<br/>Enviromental Science
<br/><br/><label>Dewey Class. No.: </label>570  / KUM-M