Advances in ecology and environmental sciences 
by P.C.Mishra... [et al.] 
 - New Delhi  Ashish Publishing House  1995 
<br/><br/><label>ISBN: </label>8170246768 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environmental Science - Research<br/>Ecology
<br/><br/><label>Dewey Class. No.: </label>574.5  / ADV