Loeb,Stanford L. <br/><br/>
Biological montoring aquatic systems / 
Loeb,Stanford L. 
 - Boca Raton:  Lewis Publishers,  1994. 
 - 381p;24cm 
<br/><br/>Includes bibliographical references. 
<br/><br/><label>ISBN: </label>0873719107 
<br/><br/><label>Dewey Class. No.: </label>574.526320287 BIO