Ouano, E. A. R. <br/><br/>
Principles of wastewater treatment / 
E.A.R. Ouano. 
 - Manila, Philippines :  National Science Development Board,  1983. 
 - 2v. :  ill. ;  23 cm. 
<br/><br/> Publication of this book was made possible by a grant from the National Science Development Board of Philippines 
<br/><br/><label>ISBN: </label> RM10.00 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Sewage--Purification.