Ashok Kumar <br/><br/>
Aquatic ecosystem 

 - New Delhi:  Discovery Publishing House,  2012. 
 - 204 p. 
<br/><br/><label>ISBN: </label>9789350560679 9789350560679 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Ecology<br/>Ecohydrology<br/>Ecosystems
<br/><br/><label>Dewey Class. No.: </label>577.6 ASH