Kormondy, Edward J. <br/><br/>
Concepts of Ecology / 
by Edward J. Kormondy 
 - New Delhi:  Prentice Hall Inc,  1971 
 - p.208 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology<br/>Ecology<br/>Environmental Biology<br/>Enviromental Science
<br/><br/><label>Dewey Class. No.: </label>577  / KOR-C