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681. UNIVERSITATEA PETROSANI. LUCRARI STIINTIFICE. MINE
  ISSN : 1220-5591
  ÃâÆÇ»ç : UNIVERSITATEA DIN PETROSANI
  ±¹°¡ : ROMANIA
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  • 682. UNIVERSITY OF ALASKA. MINERAL INDUSTRY RESEARCH LABORATORY. ANNUAL REPORT OF RESEARCH PROGRESS
      ISSN : 0568-8760
      ÃâÆÇ»ç : UNIVERSITY OF ALASKA AT FAIRBANKS
      ±¹°¡ : UNITEDSTATES
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  • 683. UNIVERSITY OF TEXAS AT AUSTIN. BUREAU OF ECONOMIC GEOLOGY. MINERAL RESOURCE CIRCULARS
      ISSN : 0082-3333
      ÃâÆÇ»ç : UNIVERSITY OF TEXAS AT AUSTIN
      ±¹°¡ : UNITEDSTATES
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  • 684. UNIVERSITY OF ZIMBABWE. INSTITUTE OF MINING RESEARCH. REPORT
      ISSN : 0254-2951
      ÃâÆÇ»ç : UNIVERSITY OF ZIMBABWE
      ±¹°¡ : ZIMBABWE
  • ºÐ·ù :ÄÄÇ»ÅÍ&°øÇÐ/°øÇÐ/±¤¾÷
  • 685. UNIWERSYTET SLASKI W KATOWICACH. PRACE NAUKOWE. PROBLEMY PRAWNE GORNICTWA
      ISSN : 0208-5488
      ÃâÆÇ»ç : UNIWERSYTET SLASKI W KATOWICACH
      ±¹°¡ : POLAND
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  • 686. UNSER BETRIEB
      ISSN : 0343-8198
      ÃâÆÇ»ç : DEILMANN - HANIEL GMBH
      ±¹°¡ : GERMANY
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  • 687. URANIUM: RESOURCES, PRODUCTION & DEMAND
      ISSN :
      ÃâÆÇ»ç : ORGANIZATION FOR ECONOMIC COOPERATION & DEVELOPMENT
      ±¹°¡ : FRANCE
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  • 688. US BUREAU OF THE CENSUS. (YEAR) ECONOMIC CENSUS. MINING
      ISSN :
      ÃâÆÇ»ç : U.S. BUREAU OF THE CENSUS
      ±¹°¡ : UNITEDSTATES
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  • 689. US DEPARTMENT OF THE INTERIOR. ALJ DECISIONS
      ISSN :
      ÃâÆÇ»ç : U.S. DEPARTMENT OF THE INTERIOR
      ±¹°¡ : UNITEDSTATES
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  • 690. US ENERGY INFORMATION ADMINISTRATION. QUARTERLY COAL REPORT
      ISSN : 0736-4598
      ÃâÆÇ»ç : U.S. ENERGY INFORMATION ADMINISTRATION
      ±¹°¡ : UNITEDSTATES
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