P.R. Trivedi <br/><br/>
Environmental Biology 

 - New Delhi  Akashdeep Publishing House  1992 
 - 392p 
<br/><br/>P.R. Trivedi & Gurudeep Raj: Environmental Biology.  New Delhi.  Akashdeep Publishing House, 1992. 81-7158-232-X--(574.5TRI)   
<br/><br/><br/>ENGLISH 
<br/><br/><label>ISBN: </label>81-7158-232-X 
<br/><br/><label>Dewey Class. No.: </label>574.5  / TRI