Negi S S <br/><br/>
Environmental degradation and crisis in India 
Negi S S 
 - New Delhi   Indus           1991 
 - 344p  cm. 
<br/><br/><label>Source: </label> General Book 
<br/><br/><label>Dewey Class. No.: </label>U:(G:55).2.N9, N1/TD3