Trivedi, P.R. <br/><br/>
International encyclopedia of ecology and environments 
P.R. Trivedi. 
 - 3rd ed. 
 - New Delhi  Indian Institute of Ecology and Environment  1994 
 - 272p., 21cm.- (V.1). 
<br/><br/> Introduction to ecology and environment. 
<br/><br/><label>ISBN: </label>8174560009. 
<br/><br/><label>Dewey Class. No.: </label>574.503  / T79I