000 00829cam a22002651 4500
001 gs 57000181
003 DLC
005 20260227111405.0
008 830122s1956 mtu 000 0 eng c
010 _ags 57000181
035 _a(OCoLC)9155891
040 _aU.S. Geol. Survey Libr.
_cOU
_dDLC
042 _apremarc
050 0 0 _aTN275
_b.S814
082 _a622.33
100 1 _aStout, Koehler S.
245 1 0 _aOperating ideas for small mines.
260 _a[Butte]
_c1956.
300 _avii, 81 p.
_billus., diagrs.
_c19 cm.
490 1 _aMontana. Bureau of Mines and Geology. Miscellaneous contribution
_vno. 14
504 _aBibliography: p. 81.
650 0 _aMineral industries
_zMontana.
650 0 _aMining engineering.
810 2 _aMontana Bureau of Mines and Geology.
_tMiscellaneous contributions ;
_vno. 14.
999 _c29156
_d29156