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*24500$a1998 assessment of undiscovered deposits of gold, silver, copper, lead, and zinc in the United States$cby the U.S. Geological survey mineral resource assessment team
*260  $aReston, Va.$bU.S. Dept. of the Interior, U.S. Geological Survey$c2002
*300  $a21 s.$bill.
*4901 $aU.S. Geological survey circular$v1178
*500  $a"Overview of the 1998 National mineral resource assessment"
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*650 0$aMines and mineral resources$zUnited States$_26827200
*650 0$aOre-deposits$zUnited States$_26827300
*830  $aUnited States Geological Survey circular$x1067-084x$v1178$w999007358054702201$_26827400
*85642$uhttp://pubs.usgs.gov/openfile/of96-96
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*999  $aoai:nb.bibsys.no:991011617004702202$b2021-11-14T19:46:37Z$z991011617004702202
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