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001 9910707831503321
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035   $a(EXLCZ)995470000002468246
100   $a20140805d1980      ua             0
101 0 $aeng
135   $aurbn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aFluorspar resources of Africa $egeologic setting, production, reserves, outlook for future supply, and relation of fluorspar deposits to rift structures and carbonatites /$fby Ralph E. Van Alstine and Paul G. Schruben
210  1$a[Reston, Va.] :$cUnited States Department of the Interior, Geological Survey,$d1980.
210  2$aWashington :$cUnited States Government Printing Office.
215   $a1 online resource (iv, 25 pages, 1 page of plates) $cillustrations, map
225 1 $aGeological Survey bulletin ;$v1487
320   $aIncludes bibliographical references (pages 21-25).
517   $aFluorspar resources of Africa 
606   $aFluorspar$zAfrica
606   $aFluorspar$2fast
607   $aAfrica$2fast
615  0$aFluorspar
615  7$aFluorspar.
700   $aVan Alstine$b Ralph Erskine$f1914-$01402176
702   $aSchruben$b Paul G.
712 02$aGeological Survey (U.S.),
801  0$bCOP
801  1$bCOP
801  2$bOCLCO
801  2$bOCLCF
801  2$bGPO
906   $aBOOK
912   $a9910707831503321
996   $aFluorspar resources of Africa$93479092
997   $aUNINA