Trivedi, R. N. and Raj, Gurdeep <br/><br/>
Environmental management of fresh water ecology 

 - New Delhi  ; Akashdeep Publishing  , 1992 
 - 336p. 
<br/><br/><label>ISBN: </label>8171582575  450 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Environment<br/>Environmental Management<br/>Environmental Studies
<br/><br/><label>Dewey Class. No.: </label>333.7  / TRI