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100   $a20140805d1976      ua             0
101 0 $aeng
135   $aurgn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
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200 10$aPrinciples of the mineral resource classification system of the U.S. Bureau of Mines and U.S. Geological Survey
210  1$a[Washington, D.C.] :$cU.S. Bureau of Mines :$cU.S. Geological Survey,$d1976.
210  2$aWashington :$cUnited States Government Printing Office.
215   $a1 online resource (v, 5 pages) $cillustration
225 1 $aGeological Survey bulletin ;$v1450-A
300   $a"A report published jointly by the U.S. Bureau of Mines and U.S. Geological Survey."
300   $a"Definitions of mineral resource classification terms used by the U.S. Bureau of Mines and U.S. Geological Survey."
517   $aPrinciples of the mineral resource classification system of the U.S. Bureau of Mines and U.S. Geological Survey 
606   $aMines and mineral resources$zUnited States$vClassification
606   $aMinerals$zUnited States$vClassification
606   $aMinerals$2fast
608   $aClassification.$2fast
615  0$aMines and mineral resources
615  0$aMinerals
615  7$aMinerals.
712 02$aGeological Survey (U.S.),
801  0$bCOP
801  1$bCOP
801  2$bOCLCO
801  2$bOCLCF
801  2$bGPO
906   $aBOOK
912   $a9910708463503321
996   $aPrinciples of the mineral resource classification system of the U.S. Bureau of Mines and U.S. Geological Survey$93276349
997   $aUNINA