000 002620000a22001210004500
245 _aMining in the new world
100 _aPrieto, Carlos
260 _aNew York
_bMcGraw Hill
_c1973
300 _a239 p.
080 _a622.2
_bP7
041 _aEN
942 _cBK
999 _c103477
_d103477