01229cam a2200289   4500001001300000003000400013005001700017008004100034010002300075040003500098050001500133082001900148100004200167245014300209260012000352300005600472350000900528490005400537500009200591504002500683650002200708650001900730650003800749700003900787740005500826830005800881gs 68000275 DLC20260227111423.0690605s1967    mtuab    b    00010 eng c  ags 68000275 //r862  aU.S. Geological Survey Library0 aQE133b.S5  a553/.24/09786610aSilverman, A. J.q(Arnold J.),d1931-10aStratigraphy and economic geology of the Great Falls-Lewistown coal field, central Montana,cby Arnold J. Silverman and William L. Harris.0 aButte,bMontana College of Mineral Science and Technology; [for sale by Montana Bureau of Mines and Geology]c1967.  aiv, 20 p.billus., maps (1 fold. in pocket)c28 cm.  a0.751 aMontana. Bureau of Mines and Geology. Bulletin 56  aPrepared in cooperation with Montana University System Coal Resources Research Council.  aBibliography: p. 17. 0aGeologyzMontana. 0aCoalzMontana. 0aGeology, StratigraphicyMesozoic.10aHarris, William L.,ejoint author. 1aGreat Falls-Lewistown coal field, central Montana. 0aBulletin (Montana Bureau of Mines and Geology) ;v56.