02359oam 2200589 450 991070701950332120160331161008.0(CKB)5470000002461296(OCoLC)885119558(OCoLC)657196267(EXLCZ)99547000000246129620140802d1956 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierGeneral geology and phosphate deposits of Concepción del Oro District, Zacatecas, Mexico /by Cleaves L. Rogers [and three others]Washington, D.C. :U.S. Department of the Interior, U.S. Geological Survey,1956.U.S. Department of the Interior, U.S. Geological Survey.1 online resource (v, 102 pages, 2 pages of plates) illustrations, mapsGeological Survey bulletin ;1037-ATitle from title screen (viewed July 22, 2014)."Prepared in cooperation with the Institute Nacional para la Investigación de Recursos Minerales under the auspices of the Technical Cooperation Administration of the Department of State and Foreign Operations Administration.""Geologic investigations in the American Republics."Includes bibliographical references (pages 94-97) and index.Geologic investigations in the American RepublicsGeologyMexicoZacatecas (State)PhosphatesMexicoZacatecas (State)GeologyfastPhosphatesfastMexicoZacatecas (State)fastGeologyPhosphatesGeology.Phosphates.Rogers C. L(Cleaves L.),1916-1410961Instituto Nacional para la Investigación de Recursos Minerales (Mexico),United States.Technical Cooperation Administration,Geological Survey (U.S.),COPCOPOCLCOOCLCEOCLCFGPOOKNOCLCQGPOBOOK9910707019503321General geology and phosphate deposits of Concepción del Oro District, Zacatecas, Mexico3500968UNINA