00728nas a22002774a 4500001000800000003001100008005001700019008004100036040002600077041000800103044000700111245002900118260005300147300002300200310001200223362003600235650001400271651001300285710004300298866001800341866001800359866001800377866001800395866001900413866001800432GMR-160AR-SsjUBGM20251028230834.0251021k19481968cc mr g       000 0 eng d  bspacAR-SsjUBGMeaacr  aeng  acc00aCanadian Mining Journal.  aQuebec :bNational Business Publications,c1948-  av. :bil. ;c28 cm  aMensual1 aEn biblioteca años 1948-1968. 4aMinería 4aCanadá2 aNational Business Publicationseeditor 0a1948 69(1-12) 0a1949 70(1-12) 0a1962 83(5-12) 0a1963 84(1-12) 0a1964 85(1,3-5) 0a1968 89(7-11)