الفترة:
Subjects: Palestine; Statistics
Subjects: Palestine; Statistics; Population
Subjects: Palestine; Statistics; Population; Sanitation; Waste water
Subjects: Palestine; Statistics; Waste disposal; Population
Subjects: Palestine; Statistics; Sanitation; Waste water
Subjects: Palestine; Statistics; Population; Water
Subjects: Health centres; Palestine; Statistics; Sanitation; Waste water
Subjects: Palestine; Statistics; Sanitation; Schools; Waste water
Subjects: Health centres; Palestine; Statistics
Subjects: Palestine; Statistics; Schools
Subjects: Palestine; Statistics; Schools; Water
Subjects: Health centres; Palestine; Statistics; Water
Subjects: Fluids; Liquids; Osmosis; Physics; Solids
Subjects: Hillah; Iraq; Environmental aspects; Soil pollution
Subjects: Adsorption; Water
Subjects: Oman; Statistics; Economic aspects; Water
Subjects: Egypt; Statistics; Carbon dioxide; Environmental aspects
Subjects: Egypt; Statistics; Economic aspects; Natural gas; Petroleum products
Subjects: Egypt; Statistics
Subjects: Egypt; Statistics; Hydrology; Water balance
Subjects: Egypt; Statistics; Pollution; Water
Subjects: Egypt; Statistics; Air; Pollution
Subjects: Agricultural wastes; Egypt; Statistics
Subjects: Egypt; Statistics; Gardens
Subjects: Egypt; Statistics; Nature reserves
Subjects: Egypt; Microbiology; Qalyubiyah; Soils; Soil pollution
Subjects: Arsenic; Egypt; Environmental aspects; Toxicology
Subjects: Baqubah; Iraq; Drinking water; Pollution; Water
Subjects: Aerial photography; Saudi Arabia; Remote sensing
Subjects: Anaerobic treatment; Microbiology; Waste water; Water treatment; Sanitation
Subjects: Statistics
Subjects: Arab world; Statistics