Environmental ecology / 
edited by P. R. Trivedi and Gurdeep Raj 
 - New Delhi :  Akashdeep Publishing House,  c1992. 
 - viii, 502 p. :  22 cm. 
<br/><br/><label>ISBN: </label>8171582435 
<br/><br/><label>LCCN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environment<br/>Ecology
<br/><br/><label>LC Class. No.: </label>QH545  / .A1E58 1992