Safe Water From Every Tap
Improving Water Service to Small Communities
Автор:
Committee on Small Water Supply Systems, Commission on Geosciences, Environment and Resources, Division on Earth and Life Studies, National Research C
Наличност:
50% вероятност
Ще претърсим света
57.33
€
112.13 лв
Small communities violate federal requirements for safe drinking water as much as three times more o...
