The Niger River Basin: A Vision for Sustainable Management.
Directions In Development.
The Niger River Basin: A Vision for Sustainable Management. - Washington, Estados Unidos de América : The World Bank, 2005 - 144 p.
0-8213-6203-8
The Niger River Basin: A Vision for Sustainable Management. - Washington, Estados Unidos de América : The World Bank, 2005 - 144 p.
0-8213-6203-8