Water and wastewater engineering systems/ 
D. Barnes ... et al.. 
 - London:  Pitman Pub.,  1981. 
 - 513 pages :.  illustrations ;  23 cm. 
<br/><br/> Includes index 
<br/><br/>Bibliography: p.483-484 
<br/><br/><label>ISBN: </label>0273011685  24.95 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Water--supply engineering<br/>Sewage disposal<br/>Sewage--Purification