02712oam 2200649 450 991070426570332120160311090747.0(CKB)5470000002439016(OCoLC)885009028(EXLCZ)99547000000243901620140731d1949 ua 0engurmn|||||||||txtrdacontentcrdamediacrrdacarrierCoal deposits of the Santa Clara district near Tonichi, Sonora, Mexico a study undertaken to aid industrial development of the region /by Ivan F. Wilson and Victor S. Rocha[Washington, D.C.] :United States Department of the Interior, Geological Survey,1949.Washington :United States Government Printing Office.1 online resource (v, 94 pages, 12 pages of plates) illustrations, color mapGeological Survey bulletin ;962-ATitle from title screen (viewed July 21, 2014)."Prepared in cooperation with the Secretaría de la Economía Nacional de México, Dirección General de Minas y Petróleo and the Universidad Nacional Autónoma de México, Instituto de Geología, under the auspices of the Interdepartmental Committee on Scientific and Cultural Cooperation, Department of State."Includes bibliographical references.Coal deposits of the Santa Clara district near Tonichi, Sonora, Mexico CoalMexicoSonora (State)Coal mines and miningMexicoSonora (State)Mines and mineral resourcesMexicoCoalfastCoal mines and miningfastMexicoMexicofastMexicoSonora (State)fastCoalCoal mines and miningMines and mineral resourcesCoal.Coal mines and mining.Wilson Ivan F(Ivan Franklin),1916-1386434Rocha Victor S(Victor Santiago),Geological Survey (U.S.),Universidad Nacional Autónoma de México.Instituto de Geología,Mexico.Dirección de Minas y Petróleo,United States.Interdepartmental Committee on Scientific and Cultural Cooperation,COPCOPOCLCOOCLCFTRAALOCLCOGPOOCLCQGPOBOOK9910704265703321Coal deposits of the Santa Clara district near Tonichi, Sonora, Mexico3477878UNINA