|
3
|
|
Great Rift Valley -- Discovery and exploration : People of the Savannah
|
2010
|
1
|
|
4
|
|
Excavations (Archaeology) -- Great Rift Valley. : Evolution of environments and hominidae in the African Western Rift Valley / edited by Noel T. Boaz
|
1990
|
1
|
|
5
|
|
Fossil hominids -- Great Rift Valley. : Evolution of environments and hominidae in the African Western Rift Valley / edited by Noel T. Boaz
|
1990
|
1
|
|
6
|
|
Geology -- Great Rift Valley. : Evolution of environments and hominidae in the African Western Rift Valley / edited by Noel T. Boaz
|
1990
|
1
|
|
7
|
|
Lake ecology -- Great Rift Valley -- History. : Environmental change and response in East African lakes / edited by John T. Lehman
|
1998
|
1
|
|
8
|
|
Lakes -- Great Rift Valley -- History. : Environmental change and response in East African lakes / edited by John T. Lehman
|
1998
|
1
|
