The great rift :
Smith, Anthony
The great rift : Africa's changing valley / Anthony Smith. - New York : Sterling Publ.Co., Inc., 1989. - 224 p.
0-8069-6906-7
Nature--Africa
The great rift : Africa's changing valley / Anthony Smith. - New York : Sterling Publ.Co., Inc., 1989. - 224 p.
0-8069-6906-7
Nature--Africa