Pathak, H. K. <br/><br/>
Ecology and environment : current perspectives 

 - 1st ed. 
 - Cyber tech publications, New Delhi  2009 
 - ii,288p 
<br/><br/><label>ISBN: </label>978-81-7884-427-5 
<br/><br/><label>Dewey Class. No.: </label>301.3 Pat