000 00459nas a22001811u 4500
090 _9110090
100 _a20180411 frey50
110 _abk zz
200 _aU.S. Bureau of Mines. Annual report
_iMining and quarrying trends in the metals...
326 _ak
710 _aEtats-Unis
_aBureau of mines
909 _aPERI
980 _5FONT
099 _c2006-07-27
_d2019-07-29