LEADER 01750nam 2200409I 450 001 9910704367503321 005 20130204120327.0 035 $a(CKB)5470000002440008 035 $a(OCoLC)826638918 035 $a(EXLCZ)995470000002440008 100 $a20130204d2012 ua 0 101 0 $aeng 135 $aurcn||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aByproduct metals and rare-earth elements used in the production of light-emitting diodes $eoverview of principal sources of supply and material requirements for selected markets /$fby David R. Wilburn 210 1$aReston, Virginia :$cU.S. Department of the Interior, U.S. Geological Survey,$d2012. 215 $a1 online resource (iv, pages) $ccolor illustrations 225 1 $aScientific investigations report ;$v2012-5215 300 $aTitle from title screen (viewed on Feb. 4, 2012). 320 $aIncludes bibliographical references (pages 13-15). 517 $aByproduct metals and rare-earth elements used in the production of light-emitting diodes 606 $aLight emitting diodes$xDesign and construction 606 $aLight emitting diodes$xMaterials 606 $aLight emitting diodes$xEnvironmental aspects 615 0$aLight emitting diodes$xDesign and construction. 615 0$aLight emitting diodes$xMaterials. 615 0$aLight emitting diodes$xEnvironmental aspects. 700 $aWilburn$b D. R$g(David R.),$01380879 712 02$aGeological Survey (U.S.), 801 0$bGPO 801 1$bGPO 906 $aBOOK 912 $a9910704367503321 996 $aByproduct metals and rare-earth elements used in the production of light-emitting diodes$93544531 997 $aUNINA