Mason, C.F. <br/><br/>
Biology of freshwater pollution/ 

 - 2nd ed. 
 - New York  Longman Scientific & Technical  1991 
 - xiii; 351p.  ills. 
<br/><br/><label>ISBN: </label>9780582061910 
<br/><br/><label>LC Class. No.: </label>QH545  / .W3N38 1991