"Vyas,Harishchandra" <br/><br/>
Manav aur paryavaran 

 - New Delhi  Vidya Vihar Prakashan  1990 
 - 112p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environment
<br/><br/><label>Dewey Class. No.: </label>H 333.7 VYA