National Seminar On Environmental Biology <br/><br/>
Biodiversity And Environment Proceedings Of The National Seminar On Environmental Biology April 3 5 1998 Edited By A K Aditya And P Haldar 

 -  Delhi : Daya Pub. House 2000. 
 - 249 
<br/><br/><br/>Eng 
<br/><br/><label>ISBN: </label>8170352266