000 00825cam a22002411 4500
001 gs 60000289
003 DLC
005 20260227111409.0
008 790301s1960 mtub b 000 0 eng c
010 _ags 60000289
035 _a(OCoLC)4704519
040 _aU.S. Geol. Survey. Libr.
_cTxEU
_dOCoLC
_dDLC
050 0 0 _aTN490.N65
_bC7
100 1 _aCrowley, Frank A.
245 1 0 _aColumbium-rare-earth deposits, southern Ravalli County, Montana.
260 _aButte,
_bMontana School of Mines,
_c1960.
300 _aiv, 47 p.
_bmaps.
_c28 cm.
490 1 _aMontana. Bureau of Mines and Geology. Bulletin
_v18
504 _aBibliography: p. 46-47.
650 0 _aNiobium ores
_zMontana
_zRavalli County.
650 0 _aRare earths
_zMontana
_zRavalli County.
830 0 _aBulletin (Montana Bureau of Mines and Geology) ;
_v18.
999 _c29487
_d29487