Ouano, E A R  <br/><br/>
Principles of wastewater treatment / 
E A R Ouano 
 - 1st ed. 
 - Manila, Philippines :   National Science Development Board,  1983. 
 - V. :  ill. ;  22 cm. 
<br/><br/>Include Bibliography and Index. 
<br/><br/>V.-1-- Biological Processes 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Oxidation Ponds.
<br/><br/><label>Dewey Class. No.: </label>628.351  / OUP 1983