Edwards, R W; Garrod, D J <br/><br/>
Conservation and productivity of natural waters 

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 - Zoological Survey of London  1972 
 - 318 
 - .
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<br/><br/><label>ISBN: </label>  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Aquatic biology, organisms, plankton, freshwater biology
<br/><br/><label>Dewey Class. No.: </label>578.76  EDW-C