TY  - BOOK
ED  - World Health Organization
TI  - Operation and maintenance of urban water supply and sanitation systems: a guide for managers
SN  - 92-4-154471-6
AV  - TD327.O63 
PY  - 1994///
CY  - Geneva
PB  - WHO
KW  - Municipal water supply
KW  - Developing countries
KW  - Sanitation
N1  - includes bibliographical references
ER  -