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100   $a20000607d1998      ua             0
101 0 $aeng
135   $aurmn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 00$aExplore the virtual side of earth science$b[electronic resource]
210  1$a[Reston, Va.] :$cU.S. Dept. of the Interior, U.S. Geological Survey,$d[1998]
215   $a1 unnumbered page $cdigital, PDF file
225 1 $aUSGS fact sheet ;$v106-98
300   $aTitle from title screen (viewed on Sept. 23, 2008).
300   $a"September 1998."
606   $aEarth sciences$xComputer simulation
606   $aVRML (Computer program language)
606   $aVolcanoes$zHawaii
607   $aSaint Helens, Mount (Wash.)
615  0$aEarth sciences$xComputer simulation.
615  0$aVRML (Computer program language)
615  0$aVolcanoes
712 02$aGeological Survey (U.S.)
801  0$bGIS
801  1$bGIS
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801  2$bGPO
906   $aBOOK
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996   $aExplore the virtual side of earth science$93208157
997   $aUNINA