TY  - BOOK
AU  - Mann,H.T.
AU  - Williamson,D
TI  - Water treatment and sanitation: a handbook of simple methods for rural areas in developing countries
U1  - 628.1 
PY  - 1976///
CY  - London
PB  - Intermediate Technology Publications
KW  - Water
KW  - Purification
KW  - Handbooks, manuals, etc
KW  - Sewage
KW  - Developing countries
KW  - Public health
KW  - Rural health
ER  -