Asthana, D. K. <br/><br/>
Textbook of environmental studies 

 - 1st edition 2006. 
 - New Delhi :  S. Chand & Company  2021 
 - 350 pages.  
<br/><br/><label>ISBN: </label>81-219-2764-1 
<br/><br/><label>Subjects--Topical Terms: </label> Biotechnology 
<br/><br/><label>Dewey Class. No.: </label>333.7  / AST