Panneerselvam, A Mohana Ramakrishnan <br/><br/>
Environmental Science Education / 
by A. Panneerselvam and Mohana Ramakrishnan 
 - New Delhi:  Sterling Publishers,  1996 
 - p.112 
<br/><br/><label>ISBN: </label>8120718437 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Biology <br/>Ecology, Environmental Biology, <br/>Enviromental Science
<br/><br/><label>Dewey Class. No.: </label>577  / PAN-E