Appropriate technology for water supply and sanitation.

Appropriate technology for water supply and sanitation.

Manylion Llyfryddiaeth
Awduron Corfforaethol: World Bank, International Bank for Reconstruction and Development
Fformat: Llyfr
Iaith:English
Cyhoeddwyd: Washington Transportation, Water and Telecommunications Department, World Bank 1980
Pynciau:
Underdeveloped areas > Water supply > Research.
Waste disposal in the ground > Underdeveloped areas.