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035   $a(EXLCZ)995470000002471053
100   $a20170420d2013      ua             0
101 0 $aeng
135   $aurcn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aFluorine, fluorite, and fluorspar in central Colorado /$fby Alan R. Wallace
210  1$aReston, Virginia :$cU.S. Department of the Interior, U.S. Geological Survey,$d2013.
215   $a1 online resource (v, 61 pages) $ccolor illustrations, color maps
225 1 $aScientific investigations report ;$v2010-5113
320   $aIncludes bibliographical references (pages 54-61).
606   $aFluorine
606   $aFluorspar$zColorado
615  0$aFluorine.
615  0$aFluorspar
700   $aWallace$b Alan R.$01384123
712 02$aGeological Survey (U.S.),
801  0$bGPO
801  1$bGPO
801  2$bGPO
906   $aBOOK
912   $a9910708617703321
996   $aFluorine, fluorite, and fluorspar in central Colorado$93458272
997   $aUNINA