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100   $a20010823d2001      ua             0
101 0 $aeng
135   $aurcn||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aChanging perceptions of United States natural-gas resources as shown by successive U.S. Department of the Interior assessments$b[electronic resource] /$fby James W. Schmoker and Thaddeus S. Dyman
205   $aVersion 1.0.
210  1$a[Denver, CO] :$cU.S. Dept. of the Interior, U.S. Geological Survey,$d[2001]
225 1 $aU.S. Geological Survey bulletin ;$v2172-B
225 1 $aChapter B of Geologic, engineering, and assessment studies of reserve growth
300   $aTitle from title screen.
320   $aIncludes bibliographical references.
606   $aNatural gas reserves$zUnited States
615  0$aNatural gas reserves
700   $aSchmoker$b J. W$01382169
701   $aDyman$b T. S$01382170
712 02$aGeological Survey (U.S.)
801  0$bGIS
801  1$bGIS
801  2$bOCLCQ
801  2$bGPO
906   $aBOOK
912   $a9910691226603321
996   $aChanging perceptions of United States natural-gas resources as shown by successive U.S. Department of the Interior assessments$93425319
997   $aUNINA