LEADER 01493oam 2200469 450 001 9910708655903321 005 20170523101947.0 035 $a(CKB)5470000002470667 035 $a(OCoLC)891401403 035 $a(OCoLC)995470000002470667 035 $a(EXLCZ)995470000002470667 100 $a20140926d1917 ua 0 101 0 $aeng 135 $aurmn||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 14$aThe coal fields of the United States$iGeneral introduction /$fby Marius R. Campbell 210 1$aWashington :$cDepartment of the Interior, United States Geological Survey,$d1917. 215 $a1 online resource (33 pages) $cillustrations +$e1 plate 225 1 $aProfessional paper ;$v100-A 300 $aTitle from title screen (viewed September 17, 2014). 300 $a"Published February 24, 1917." 300 $a"Professional Paper 100, pages 1-33." 320 $aIncludes bibliographical references. 606 $aCoal$zUnited States 606 $aCoal$2fast 607 $aUnited States$2fast 615 0$aCoal 615 7$aCoal. 700 $aCampbell$b Marius R$g(Marius Robinson),$f1858-1940,$0810150 712 02$aGeological Survey (U.S.), 801 0$bCOP 801 1$bCOP 801 2$bOCLCO 801 2$bOCLCA 801 2$bOCLCF 801 2$bGPO 906 $aBOOK 912 $a9910708655903321 996 $aThe coal fields of the United States$93490857 997 $aUNINA