Prasad, Braj Nandan <br/><br/>
Algal indicators of water pollution 
Braj Nandan Prasad; Yashpal Singh 
 - Dehra Dun  Bishen Singh Mahendra Pal Singh  1996 
 - vi, 263 p 
<br/><br/><label>ISBN: </label>812110128x 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water pollution
<br/><br/><label>Dewey Class. No.: </label>577.627 PRA