00667cam a22002294a 4500003001000000005001700010008004100027020001500068040002500083041000800108044000800116080001500124100002300139245003500162260007400197300002700271504003300298650002800331650002700359650003200386655001900418AR-SsjUIB20250710162849.0250429s1998    xxu           000 0 spa d  a0873351657  aAR-SsjUIBcAR-SsjUIB0 aspa  axxu  a338.23:6221 aRunge, Ian Charles10aMining economics and strategy.  aLittleton :bSociety form mining, metallurgy, and exploration,c1998.  a295 p. :bil. ;c28 cm  aBibliografía en p.277-282. 7aEconomía minera2lemb 7aIndustria minera2lemb 7aIngeniería de minas2lemb 7aLibro2unescot