Water pollution control
Palange,Ralph C and Zavala,AlOfnso
Water pollution control Guidelines for project planning and financing / Ralph C.Palange and Alofnso Zavala - Washington WOrld bank 1987 - xiii, 211p. - World Bank technical paper .
Environmental problem
Water - pollution - developing countries
Water pollution control Guidelines for project planning and financing / Ralph C.Palange and Alofnso Zavala - Washington WOrld bank 1987 - xiii, 211p. - World Bank technical paper .
Environmental problem
Water - pollution - developing countries