Subject
- Trees3
- Urban planning and environment3
- Waste control3
- Water transfer3
- Agricultural administration--Arab countries2
- Buildings2
- Coasts2
- Coastwise navigation2
- Commerce2
- Conveying machinery2
- Crime2
- Cultural preservation2
- Culverts2
- Customer services2
- Development2
- Disaster planning2
- Drainage2
- Food Animals2
- Food supply--Arab countries2
- Forests and forestry2