North-East Sudan : triangulation observed 1935-52 [peta]
27
Materiálatiipa: | |
---|---|
Almmustuhtton: |
[Khartoum] : Ministry of Mineral Resources of the Republic of Sudan,
1950
|
Fáttát: |
27
Materiálatiipa: | |
---|---|
Almmustuhtton: |
[Khartoum] : Ministry of Mineral Resources of the Republic of Sudan,
1950
|
Fáttát: |