R P Singh <br/><br/>
Environmental studies/ 
by R P Singh 
 - New Delhi:  Concept,  2012. 
 - 344p. 
<br/><br/><label>ISBN: </label>9788180697746 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Human Ecology<br/>Natural Resources India<br/>Environmental Sciences<br/>Social Sciences
<br/><br/><label>Dewey Class. No.: </label>333.7  / RPS/E