Ramakrishnan,P.S. <br/><br/>
Ecology and Sustainable Development:  working with knowledge systems/ 
by P.S.Ramakrishnan 
 - New Delhi:  National book Trust,  2001. 
 - x,217p.;  ill.  21cm. 
<br/><br/><label>ISBN: </label>9788123752570 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sustanable Development <br/>Ecology
<br/><br/><label>Dewey Class. No.: </label>581.5  / RAM