TY  - BOOK
TI  - Sectorial study and National Programming for Community and Rural water supply, Sewerage and Water Pollution Control :: Current Sewage Disposal methods and Problems 
T2  - Report
PY  - 1972///
CY  - Brazzaville
PB  - World Health Organization
KW  - Water treatment
N1  - Include appendix; Include bibliographical references
ER  -