Kumar, Arvind <br/><br/>
Textbook of environmental science 

 - New Delhi  APH Publishing Corporation  2004 
 - 376 
<br/><br/><label>ISBN: </label>81-7648-591-x 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>
<br/><br/><label>Dewey Class. No.: </label>574.5