LEADER 02052oam 2200517I 450 001 9910707242103321 005 20160620160948.0 035 $a(CKB)5470000002463088 035 $a(OCoLC)891382666 035 $a(EXLCZ)995470000002463088 100 $a20140926d1969 ua 0 101 0 $aeng 135 $aurbn||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aPhosphate rock in Colombia $ea preliminary report /$fby James B. Cathcart and Francisco Zambrano O ; with a section on The phosphate occurrence at Turmeque? by Pedro E. Mojica G 210 1$a[Washington, D.C.] :$cUnited States Department of the Interior, Geological Survey,$d1969. 210 2$aWashington :$cUnited States Government Printing Office. 215 $a1 online resource (iv, 77 pages, 3 pages of plates) $cillustrations, maps 225 1 $aGeological Survey bulletin ;$v1272-A 225 1 $aContributions to economic geology 300 $aTitle from title screen (viewed September 15, 2014). 300 $a"Prepared in cooperation with the Servicio Geologico Nacional of Columbia, under the auspices of the Government of Colombia and the Agency for International Development, U.S. Department of State." 320 $aIncludes bibliographical references (pages 71-73) and index. 517 $aPhosphate rock in Colombia 606 $aPhosphates$zColombia 606 $aPhosphates$2fast 607 $aColombia$2fast 615 0$aPhosphates 615 7$aPhosphates. 700 $aCathcart$b James Bachelder$f1917-$01386984 702 $aMojica G$b Pedro E. 702 $aZambrano O$b Francisco 712 02$aGeological Survey (U.S.), 712 02$aUnited States.$bAgency for International Development, 712 02$aInstituto Geolo?gico Nacional (Colombia), 801 0$bCOP 801 1$bCOP 801 2$bOCLCO 801 2$bOCLCF 801 2$bGPO 906 $aBOOK 912 $a9910707242103321 996 $aPhosphate rock in Colombia$93461775 997 $aUNINA