Spellman, Frank R. <br/><br/>
Stream ecology and self-purification : an introduction for wastewater and water specialists / 
Frank R. Spellman. 
 - Lancaster, Pa. :  Technomic Pub.,  c1996. 
 - xiii, 133 p. :  ill. ;  24 cm. 
<br/><br/>Includes bibliographical references (p. 127-129) and index. 
<br/><br/><label>ISBN: </label>1566763770 
<br/><br/><label>LCCN: </label>95062015  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Stream self-purification.<br/>Stream ecology.--ME, IME
<br/><br/><label>LC Class. No.: </label>TD764  / .S64 1996 
<br/><br/><label>Dewey Class. No.: </label>577.64 SPE