TY  - BOOK
AU  - Rybczynki,Witold
TI  - Appropriate technology for water and sanitation: : low-cost technology options for samitation a state- of-the-art review and annotated bibliography
AV  - ERB TD335.R9 
PY  - 1982///
KW  - Developing countries
KW  - Water supply
KW  - Sanitary engineering
KW  - Sewage disposed
ER  -