01576nam 2200457 450 991071656820332120210615075828.0(CKB)5470000002522472(OCoLC)1256550146(EXLCZ)99547000000252247220210615d1970 ua 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierClays, bentonite bentonitePortland, Ore :U.S. Department of the Interior, Bureau of Land Management, Portland Service Center,[1970]1 online resource (2 pages)Technical note / Bureau of Land Management ;[120]"Filing code: 3800.""Date issued: May 25, 1970"--Stamped on document."Mailing list 2."Bibliography of 23 resources on bentonite, some include brief annotations.Clays, bentonite Mines and mineral resourcesUnited StatesBibliographyBentoniteUnited StatesBibliographyClay mineralsUnited StatesBibliographyClayUnited StatesBibliographyBibliographies.lcgftMines and mineral resourcesBentoniteClay mineralsClayUnited States.Bureau of Land Management.Portland Service Center,GPOGPOBOOK9910716568203321Clays, bentonite3508459UNINA