"Pirta, Raghubir Singh" <br/><br/>
Ecology and human well-being 

 - Shimla  Institute of integrated himalayan studies  2007 
 - 194p. 
<br/><br/><label>ISBN: </label>9788175413542 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology-Himachal Pradesh
<br/><br/><label>Dewey Class. No.: </label>HP 304.2 PIR