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035   $a(OCoLC)995470000002333833
035   $a(EXLCZ)995470000002333833
100   $a20160730e19921983  ua             0
101 0 $aeng
135   $aurbn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aCoal resource classification system of the U.S. Geological Survey /$fby Gordon H. Wood, Jr. [and three others]
210  1$a[Reston, Virginia] :$cU.S. Department of the Interior, U.S. Geological Survey,$d1983.
210  3$a[Washgington, D.C.] :$cUnited States Government Printing Office,$d1992.
215   $a1 online resource (vii, 65 pages) $cillustrations, maps
225 1 $aGeological Survey circular ;$v891
320   $aIncludes bibliographical references (pages 64-65).
606   $aCoal mines and mining$zUnited States$xClassification
606   $aCoal mines and mining$2fast
607   $aUnited States$2fast
615  0$aCoal mines and mining$xClassification.
615  7$aCoal mines and mining.
700   $aWood$b Gordon H$g(Gordon Harry),$f1919-$01398070
712 02$aGeological Survey (U.S.),
801  0$bOCLCE
801  1$bOCLCE
801  2$bOCLCQ
801  2$bOCLCA
801  2$bCOP
801  2$bUWO
801  2$bOCLCQ
801  2$bGPO
906   $aBOOK
912   $a9910689942003321
996   $aCoal resource classification system of the U.S. Geological Survey$93497291
997   $aUNINA