TY  - BOOK
AU  - Kalbermatten, J.M. 
AU  - Gunnerson, C.G. Julius, D.S. World Bank. Transportation, Water and Telecommunication Department
TI  - Appropriate technology for water supply and sanitation : a sanitation field manual
PY  - 1980///
CY  - Washington, D.C.
PB  - World Bank
KW  - Sanitary engineering Water supply
ER  -