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181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aColumbium (niobium) and tantalum$b[electronic resource]
210   $a[Washington, DC] $c[U.S. Dept. of the Interior, Bureau of Mines]
225 1 $a1994-2002: [Mineral industry surveys]
300   $aSeries statement from Mineral Industry Surveys web page.
300   $aPublished: Reston, VA, 1995-
300   $aDescription based on: 1994; title from title screen (viewed Jan. 14, 2004).
300   $aLatest issue consulted: 2002.
517   $aColumbium 
606   $aNiobium$zUnited States$vStatistics$vPeriodicals
606   $aTantalum$zUnited States$vStatistics$vPeriodicals
606   $aNiobium$vStatistics$vPeriodicals
606   $aTantalum$vStatistics$vPeriodicals
608   $aStatistics.$2lcgft
615  0$aNiobium
615  0$aTantalum
615  0$aNiobium
615  0$aTantalum
712 02$aUnited States.$bBureau of Mines.
712 02$aGeological Survey (U.S.)
801  0$bGPO
801  1$bGPO
801  2$bOCLCQ
801  2$bIUL
801  2$bGPO
906   $aDOCUMENT
912   $a9910692128603321
996   $aColumbium (niobium) and tantalum$93432792
997   $aUNINA