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- [15] HEAVY METAL DISTRIBUTION IN LATERITES, SOUTHWEST OF REGENT, FREETOWN IGNEOUS COMPLEX, SIERRA LEONE. Economic Geology and the Bulletin of the Society of Economic Geologists, 1979, 74 (03): : 638 - 644
- [20] GASTROINTESTINAL HELMINTH-PARASITES OF DOGS IN THE WESTERN AREA - FREETOWN (SIERRA-LEONE) BEITRAGE ZUR TROPISCHEN LANDWIRTSCHAFT UND VETERINARMEDIZIN, 1982, 20 (04): : 401 - 407