Phillips D J H <br/><br/>
Quantitative aqutic biological indicators 
Phillips D J H 
 -  1980 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>48655 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Enironmental Biology
<br/><br/><label>Dewey Class. No.: </label>G:55:(D854), M0