Smith, Anthony.
The great rift valley : Africa's changing valley / Anthony Smith. - New York, NY : Sterling Publishing, 1988 - 224 p. : ill. (col)., maps.
0806969067
90044023
Rifts (Geology)--Africa.
Valleys--Africa.
Nature conservation--Africa.
Wilderness areas--Environmental aspects.
Great Rift Valley.
The great rift valley : Africa's changing valley / Anthony Smith. - New York, NY : Sterling Publishing, 1988 - 224 p. : ill. (col)., maps.
0806969067
90044023
Rifts (Geology)--Africa.
Valleys--Africa.
Nature conservation--Africa.
Wilderness areas--Environmental aspects.
Great Rift Valley.