TY  - SER
AU  -  Kalbermatten, John M.
ED  -  World Bank. 
TI  -  Appropriate technology for water supply and sanitation : :  technica l and economic options / 
U1  -  MISR 363.61 KAL 
PY  - 1980///-
CY  -  Washington, D.C. : 
PB  -  Transportation, Water, and Telecommunications Dept., World Bank, 
KW  -  Sanitary engineering
KW  -  Water Supply
KW  -  Periodicals
N1  -  Latest issue consulted: Vol. 3, published 1981
ER  -