Dobson, Mike <br/><br/>
Ecology of aquatic systems / 
Mike Dobson and Chris Frid 
 - Harlow Essex :  Longman,  1998 
 - viii, 222 p. :  ill. ;  26 cm. 
<br/><br/>Bibliography: p. 189-203 
<br/><br/><label>ISBN: </label>0582298040  RM145.12 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aquatic ecology