Ray, J G <br/><br/>
Basic principles of ecology and environment 

 - Changanacherry:   Pratibha Publishers,   2010 
 - 239p. 
<br/><br/><label>ISBN: </label>978-81-907782-4-4 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology
<br/><br/><label>Subjects--Index Terms: </label>Environment 
<br/><br/><label>Universal Decimal Class. No.: </label>502/504  / Q0