00807cam a22002411  4500001001300000003000400013005001700017008004100034010001700075035002000092040005400112042001200166043001200178050001500190100004200205245005900247260004700306300002600353440008200379500005200461650003500513999001700548gs 21000368 DLC20260227111326.0851001s1920    mtua          001 0 eng c  ags 21000368   a(OCoLC)12622674  aU.S. Geol. Survey. LibrarycWaChenEdWaChenEdDLC  apremarc  an-us-mt00aTN560b.P81 aPulsifer, Harry Bridgman,d1879-1947.10aMechanical ore sampling in Montana,cby H.B. Pulsifer.  aButte, Mont.bState School of Minesc1920.  a72 p.billus.c23 cm. 0aUniversity of Montana bulletin.pBureau of Mines and Metallurgy seriesvno. 3  a"Important publications on sampling:" p. 69-70. 0aOresxSampling and estimation.  c26126d26126