01534nam 2200409 450 991070352550332120150706101240.0(CKB)5470000002432449(OCoLC)913220934(EXLCZ)99547000000243244920150706d2014 ua 0engurcn|||||||||txtrdacontentcrdamediacrrdacarrierConflict minerals from the Democratic Republic of the Congo global tantalum processing plants, a critical part of the tantalum supply chain[Reston, Va.] :U.S. Department of the Interior, U.S. Geological Survey,2014.1 online resource (4 unnumbered pages) color mapFact sheet ;2014-3122Title from title screen (viewed on July 1, 2015)."By John F. Papp"--page [4]."December 2014."Includes bibliographical references (page [4]).Conflict minerals from the Democratic Republic of the Congo Strategic materialsCongo (Democratic Republic)Tungsten mines and miningCongo (Democratic Republic)Strategic materialsTungsten mines and miningPapp John F.1385730Geological Survey (U.S.),GPOGPOBOOK9910703525503321Conflict minerals from the Democratic Republic of the Congo3436210UNINA