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100   $a20040622a19949999  ua              
101 0 $aeng
135   $auranu|||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 04$aThe mineral industry of Pennsylvania$b[electronic resource]
210   $a[Washington, D.C.] $c[U.S. Dept. of the Interior, Bureau of Mines]
300   $aDescription based on: 1994; title from title screen (viewed on June 17, 2004).
606   $aMineral industries$zPennsylvania$vStatistics$vPeriodicals
606   $aMines and mineral resources$zPennsylvania$vPeriodicals
608   $aStatistics.$2lcgft
615  0$aMineral industries
615  0$aMines and mineral resources
712 02$aUnited States.$bBureau of Mines.
712 02$aGeological Survey (U.S.)
801  0$bGPO
801  1$bGPO
906   $aDOCUMENT
912   $a9910692531503321
996   $aThe mineral industry of Pennsylvania$93433383
997   $aUNINA