01020nam0-2200313---450-99000981399040332120140123143558.0000981399FED01000981399(Aleph)000981399FED0100098139920140123d1938----km-y0itay50------baengUSy-------001yyMinerals yearbook 1938compiled under the supervision of H. Herbert HughesWashingtonU.S. Government printing office1938X, 1339 p.24 cmIn testa al front.: United States Department of the Interior. Bureau of MinesIndustria minerariaStati Uniti d'AmericaHughes,Herbert H.United States of America.Department of the Interior.Bureau of minesITUNINARICAUNIMARCBK990009813990403321Q 1/15s.i.DINGEDINGEMinerals yearbook 1938837897UNINA01471nas 2200469- 450 99632168430331620230518213020.02413-3051(DE-599)ZDB2677897-X(OCoLC)609694911(CKB)110985646834826(CONSER)--2017268509(EXLCZ)9911098564683482620100427a19909999 --- aenguru||||||||||txtrdacontentcrdamediacrrdacarrierJournal of Energy in Southern AfricaCape Town :Energy Research Centre,<1990->1 online resourceRefereed/Peer-reviewed1021-447X JESAJ. ENERGY SOUTH. AFRJ. energy South. Afr.Power resourcesResearchPeriodicalsPower resourcesAfrica, SouthernPeriodicalsPower resourcesResearchfast(OCoLC)fst01074337Power resourcesfast(OCoLC)fst01074275Southern AfricafastPeriodicals.fastPower resourcesResearchPower resourcesPower resourcesResearch.Power resources.University of Cape Town.Energy Research Centre,JOURNAL996321684303316Journal of Energy in Southern Africa2153124UNISA