TY  - BOOK
AU  - World Bank
ED  - World Bank
TI  - Water supply and sewerage
T2  - Its sector working paper series
U1  - "X9(D85-864).1(X).N7, L1/UN" 
PY  - 1971///
CY  - Washington
PB  - World Bank USA     
KW  - Electrical
ER  -