Ramakrishnan,P S <br/><br/>
Ecology and Sustainable Develoment : working with knowledge system 
P S Ramakrishnan 
 - New Delhi  National Book Trust  2008 
 - 217/198  PBB 
<br/><br/><label>ISBN: </label>8123736223  90.00/70.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology; Sustainable Development
<br/><br/><label>Dewey Class. No.: </label>574.5  / RAM