Technical and economic options
Kalbermatten, John M.
Technical and economic options - Washington Dc: The World Bank, 1980 - 124p.: ill.; 28cm.
Includes bibliographies
Water supply
Developing countries
Sewage disposal
IRA TD353.K3
Technical and economic options - Washington Dc: The World Bank, 1980 - 124p.: ill.; 28cm.
Includes bibliographies
Water supply
Developing countries
Sewage disposal
IRA TD353.K3