00444cam a22001814a 4500003001000000005001700010008004100027040002500068041000800093044000800101080001200109100001500121245002600136260003100162300002700193650002300220655001900243AR-SsjUIB20250716140135.0250429s1964    xxk           000 0 eng d  aAR-SsjUIBcAR-SsjUIB0 aeng  axxk  a038:6221 aNelson, A.10aDictionary of mining.  aLondon :bG.Newnes,c1964.  a523 p. :bil. ;c19 cm 7aDiccionarios2lemb 7aLibro2unescot