02514oam 2200733 450 991069016990332120190213105507.0(CKB)5470000002335572(OCoLC)974489586(OCoLC)995470000002335572(EXLCZ)99547000000233557220170302d1993 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierInternational Strategic Minerals Inventory summary report niobium (columbium) and tantalum /by Richard N. Crockett and David M. Sutphin[Reston, Virginia] :U.S. Department of the Interior, U.S. Geological Survey,1993.[Washington, D.C.] :United States Government Printing Office,1993.1 online resource (vi, 36 pages) illustrations, mapsU.S. Geological Survey circular ;930-M"Prepared as a cooperative effort among earth-science and mineral-resource agencies of Australia, Canada, the Federal Republic of Germany, the Republic of South Africa, the United Kingdom, and the United States of America."Includes bibliographical references (pages 34-36).International Strategic Minerals Inventory summary report Niobium oresNiobiumNiobium industryTantalum oresTantalumTantalum industryStrategic materialsNiobiumfastNiobium industryfastNiobium oresfastTantalumfastTantalum industryfastTantalum oresfastNiobium ores.Niobium.Niobium industry.Tantalum ores.Tantalum.Tantalum industry.Strategic materials.Niobium.Niobium industry.Niobium ores.Tantalum.Tantalum industry.Tantalum ores.Crockett R. N.1394117Sutphin David M.Geological Survey (U.S.),OCLCEOCLCEOCLCAOCLCQCOPGPOBOOK9910690169903321International Strategic Minerals Inventory summary report3526952UNINA