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100   $a20071001d2006      ua             0
101 0 $aeng
135   $aurcn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aUSGS mineral resources program-- supporting stewardship of America's natural resources$b[electronic resource] /$fby S.J. Kropschot, with a section on Evolution of Mineral Resource Assessments, by Kathleen M. Johnson
210  1$aReston, Va. :$cU.S. Dept. of the Interior, U.S. Geological Survey,$d2006.
215   $av, 35 pages $cdigital, PDF file
225 1 $aCircular ;$v1289
300   $aTitle from title screen (viewed on Feb. 14, 2008).
311   $a1-4113-1049-7 
320   $aIncludes bibliographical references (pages 31-35).
330 3 $aThe USGS Mineral Resources Program continues a tradition of Federal leadership in the science of mineral resources that extends back before the beginning of the bureau. The need for information on metallic mineral resources helped lead to the creation of the USGS in 1879. In response to the need to assess large areas of Federal lands in the 20th century, Program scientists developed, tested, and refined tools to support managers making land-use decisions on Federal lands. The refinement of the tools and techniques that have established the USGS as a leader in the world in our ability to conduct mineral resource assessments extends into the 21st century.
606   $aMines and mineral resources$zUnited States
615  0$aMines and mineral resources
700   $aKropschot$b S. J$g(Susan J.)$01382614
701   $aJohnson$b Kathleen M$01413073
801  0$bORE
801  1$bORE
801  2$bGPO
906   $aBOOK
912   $a9910694479403321
996   $aUSGS mineral resources program-- supporting stewardship of America's natural resources$93512900
997   $aUNINA