01814oam 2200457 450 991070846350332120161202153021.0(CKB)5450000000428893(OCoLC)885281731(EXLCZ)99545000000042889320140805d1976 ua 0engurgn|||||||||txtrdacontentcrdamediacrrdacarrierPrinciples of the mineral resource classification system of the U.S. Bureau of Mines and U.S. Geological Survey[Washington, D.C.] :U.S. Bureau of Mines :U.S. Geological Survey,1976.Washington :United States Government Printing Office.1 online resource (v, 5 pages) illustrationGeological Survey bulletin ;1450-A"A report published jointly by the U.S. Bureau of Mines and U.S. Geological Survey.""Definitions of mineral resource classification terms used by the U.S. Bureau of Mines and U.S. Geological Survey."Principles of the mineral resource classification system of the U.S. Bureau of Mines and U.S. Geological Survey Mines and mineral resourcesUnited StatesClassificationMineralsUnited StatesClassificationMineralsfastClassification.fastMines and mineral resourcesMineralsMinerals.Geological Survey (U.S.),COPCOPOCLCOOCLCFGPOBOOK9910708463503321Principles of the mineral resource classification system of the U.S. Bureau of Mines and U.S. Geological Survey3276349UNINA