Biological monitoring of aquatic systems 

 - Boca Raton, FL:  Lewis Publishers,  1994 
 - 381 p. : ill., maps ; 25 cm. 
<br/><br/><label>ISBN: </label>9780873719100 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Freshwater ecology - Congresses
<br/><br/><label>Dewey Class. No.: </label>57526320287 LOE