The Jonglei Canal : impact and opportunity
1988
Howell, P. P. (Paul Philip) |
Lock, Michael |
Cobb, Stephen |
Howell, P. P. (Paul Philip)
The Nile : sharing a scarce resource. A historical and technical review of water management and of economic and legal issues
1994
Howell, P. P. (Paul Philip) |
Allan, J. A. A. |