00866cam a22002651  4500001001300000003000400013005001700017008004100034010001700075035001900092040002600111042001200137050001500149086002800164100003500192245004800227260004300275300002700318490005600345490003900401490005000440650002400490810006900514999001700583gs 54000317 DLC20260227111402.0800405s1954    azua         s000 0 eng    ags 54000317   a(OCoLC)6170013  aDLCcTxCMdOCoLCdDLC  apremarc00aTN153b.K70 aMN 1.3:B 85/1642azdocs1 aKrumlauf, Harry Eugene,d1901-10aExploration and development of small mines.  aTucson,bUniversity of Arizona,c1954.  a34 p.billus., tables.1 aArizona. [State] Bureau of Mines. Bulletinvno. 1640 aMineral technology series,vno. 480 aUniversity of Arizona bulletin,vv. 25, no. 1 0aMining engineering.2 aUniversity of Arizona.bState Bureau of Mines.tBulletin ;v164.  c28913d28913