Loeb, Stanford L. <br/><br/>
Biological monitoring of aquatic systems /  
Stanford L. Loeb, Anne Spacie. 
 - Boca Raton :   Lewis Publishers ,   1994. 
 - 381p. :   Ills. ;   25cm .  
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<br/><br/><label>ISBN: </label>0873719107  NULL 
<br/><br/><label>Subjects--Index Terms: </label>FRESHWATER ECOLOGY-CONGRESSES 
<br/><br/><label>Dewey Class. No.: </label>577.60287  / LOE/B