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035   $a(EXLCZ)995470000002461599
100   $a20140802d1958      ua             0
101 0 $aeng
135   $aurn||||||||||
181   $ctxt$2rdacontent
181   $ccri$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aGeology and coal resources of the Walsenburg area, Huerfano County, Colorado /$fby Ross B. Johnson
210  1$a[Washington, D.C. ]:$c[United States Department of the Interior, Geological Survey],$d[1958]
210  2$aWashington :$cUnited States Government Printing Office.
215   $a1 online resource (iii, 557-583 pages, 3 pages of plates) $cmaps, charts
225 1 $aContributions to economic geology
225 1 $aGeological Survey bulletin ;$v1042-O
300   $aTitle from title screen (viewed July 22, 2014).
300   $aAdditional title page description: "A study of coal resources and their geologic occurence in formations of Late Cretaceous and Paleocene age."
320   $aIncludes bibliographical references (page 581) and index.
606   $aCoal$zColorado$zHuerfano County
606   $aCoal$2fast
607   $aColorado$zHuerfano County$2fast
615  0$aCoal
615  7$aCoal.
700   $aJohnson$b Ross B.$f1919-$01387215
712 02$aGeological Survey (U.S.),
801  0$bCOP
801  1$bCOP
801  2$bOCLCO
801  2$bOCLCF
801  2$bGPO
801  2$bOCLCQ
801  2$bGPO
906   $aBOOK
912   $a9910707189503321
996   $aGeology and coal resources of the Walsenburg area, Huerfano County, Colorado$93489406
997   $aUNINA