Berk, S.G.  <br/><br/>
Wastewater organisms: a color atlas  (Book) 

 - Boca Raton  Lewis Publishers  1993 
 - 22 p.  29 cm. 
<br/><br/><label>ISBN: </label>087371623X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sewage--Microbiology--Atlases
<br/><br/><label>Universal Decimal Class. No.: </label>579.68 BER  / 13999