Kumar, Arvind <br/><br/>
Aquatic ecosystems 
/by Arvind Kumar 
 - New Delhi  APH Publishing  2003 
 - xi,437p. 
<br/><br/><label>ISBN: </label>81-7648-454-7 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water--Pollution--Ecosystem management
<br/><br/><label>Dewey Class. No.: </label>574.5263  / KUM/A