Water and sanitation economic and sociological perspectives

Những quyển sách tương tự

• Handpumps testing and development : proceedings of a workshop in China /
  Được phát hành: (1985)
• Resource mobilization for drinking water and sanitation in developing nations : proceedings of the international conference /
  Được phát hành: (1987)
• Drinking-water and sanitation, 1981-1990 : a way to health / a WHO contribution to the International Drinking Water Supply and Sanitation Decade.
  Được phát hành: (1981)
• The International Drinking Water Supply and Sanitation Decade Directory.
  Được phát hành: (1984)
• Technology for water supply and sanitation in developing countries : report of a WHO Study Group.
  Được phát hành: (1987)