ASTHANA (D K) and ASTHANA (Meera). <br/><br/>
Environment : problems & solutions. Ed 1. 

 - 
 - New Delhi.  S. Chand & Co. Ltd.  1998 
 - xii,323 
<br/><br/><label>ISBN: </label>81 219 1654 2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environment: problems & solutions
<br/><br/><label>Dewey Class. No.: </label>363.7 ASTE