Range:
Subjects: Health centres; Palestine; Statistics; Ecology
Subjects: Health centres; Palestine; Statistics
Subjects: Health centres; Palestine; Statistics; Waste disposal
Subjects: Health centres; Palestine; Statistics; Sanitation; Waste water
Subjects: Health centres; Palestine; Statistics; Water
Subjects: Health centres; Palestine; Statistics; Consumption; Water
Subjects: Health centres; Palestine; Statistics; Environmental aspects
Subjects: Health centres; Palestine; Statistics; Dust
Subjects: Health centres; Palestine; Statistics; Noise
Subjects: Algeria; Pollution; Sanitation; Waste water; Water
Subjects: Iraq; Water
Subjects: Data processing; Measurement; Winds
Subjects: Iraq; Mosul; Waste treatment