https://www.usgs.gov/media/files/mineral-industry-niger-2017-18-xlsx
The Mineral Industry of Niger, 2017-18 (XLSX) | U.S. Geological Survey
XLSX format - Niger 2017-18 Minerals Yearbook. Country chapters from the Minerals Yearbook (Volume III. -- Area Reports: International) are designed to provide...
mineral industry of niger2017 18