Kumar ,Arvind <br/><br/>
Textbook of Environmental Science 
Arvind Kumar 
 - New Delhi  A P H Publishing  2004 
 - 376 
<br/><br/><label>ISBN: </label> 165 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology; Pollution - Nature; Ecosystem; Environment - Social Issue
<br/><br/><label>Dewey Class. No.: </label>574.526  / KUM