LEADER 02215oam  2200553   450 
001 9910706958303321
005 20180412124510.0
035   $a(CKB)5470000002459894
035   $a(OCoLC)896810639
035   $a(OCoLC)995470000002459894
035   $a(EXLCZ)995470000002459894
100   $a20141123d1981      ua             0
101 0 $aeng
135   $aurmn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aGeology of the western part of the Harold D. Roberts Tunnel, Colorado (Stations 0+00 to 690+00) /$fby Ernest E. Wahlstrom, Charles S. Robinson, and V. Quentin Hornback
210  1$aWashington :$cUnited States Department of the Interior, Geological Survey,$d1981.
215   $a1 online resource (vii, C58 pages) $cillustrations, maps +$e11 plates
225 1 $aGeological Survey professional paper ;$v831-C.
225 1 $aEngineering geology of the Harold D. Roberts Tunnel, Colorado.
300   $aTitle from title screen (viewed October 6, 2014).
300   $a"A description of the geology of and engineering practices used in the western part of the tunnel."
320   $aIncludes bibliographical references (page C58).
517   $aGeology of the western part of the Harold D. Roberts Tunnel, Colorado 
606   $aEngineering geology$zColorado$zHarold D. Roberts Tunnel
606   $aGeology$zColorado$zHarold D. Roberts Tunnel
606   $aEngineering geology$2fast
606   $aGeology$2fast
607   $aHarold D. Roberts Tunnel (Colo.)
607   $aColorado$zHarold D. Roberts Tunnel$2fast
615  0$aEngineering geology
615  0$aGeology
615  7$aEngineering geology.
615  7$aGeology.
700   $aWahlstrom$b Ernest E$g(Ernest Eugene),$f1909-2000,$01399312
702   $aHornback$b V. Quentin
702   $aRobinson$b Charles Sherwood$f1920-
712 02$aGeological Survey (U.S.),
801  0$bCOP
801  1$bCOP
801  2$bOCLCO
801  2$bOCLCF
801  2$bGPO
906   $aBOOK
912   $a9910706958303321
996   $aGeology of the western part of the Harold D. Roberts Tunnel, Colorado (Stations 0+00 to 690+00)$93464287
997   $aUNINA