TY  - BOOK
AU  - Ouano, E A R 
TI  - Principles of wastewater treatment
U1  - 628.351 23
PY  - 1983///
CY  - Manila, Philippines : 
PB  - National Science Development Board
KW  - Oxidation Ponds
N1  - Include Bibliography and Index; V.-1-- Biological Processes
ER  -