Critical mineral resources of the United States – Economic and environmental geology and prospects for future supply
Critical mineral resources of the United States – Economic and environmental geology and prospects for future supply
Schulz, K. J., DeYoung, J. H., Seal, R. R. & Bradley, D. C.(2017). Critical mineral resources of the United States – Economic and environmental geology and prospects for future supply. – Professional Paper, 1802, 797 S. (U. S. Geological Survey), verfügbar unter http://doi.org/10.3133/pp1802.