|
Liberia | |
| USGS (2005) MInerals Yearbook 2004. |
| USGS (2005) MInerals Yearbook 2004. |
| USGS (2005) MInerals Yearbook 2004. |
| Force, Eric R. (1983) Geology of Nimba County, Liberia. Bulletin Vol. 1540. US Geological Survey doi:10.3133/b1540 |
| Force, Eric R. (1983) Geology of Nimba County, Liberia. Bulletin Vol. 1540. US Geological Survey doi:10.3133/b1540 |
| Diamond crystals in the collection of Rock Currier |
| Force, Eric R. (1983) Geology of Nimba County, Liberia. Bulletin Vol. 1540. US Geological Survey doi:10.3133/b1540 |
| Force, Eric R. (1983) Geology of Nimba County, Liberia. Bulletin Vol. 1540. US Geological Survey doi:10.3133/b1540 |
| Force, Eric R. (1983) Geology of Nimba County, Liberia. Bulletin Vol. 1540. US Geological Survey doi:10.3133/b1540 |