. . "Zinc mines and mining / Wisconsin." . . "Mine valuation." . . "A study of methods of mine valuation and assessment with special reference to the zinc mines of southwestern Wisconsin" . . . "A study of methods of mine valuation and assessment with special reference to the zinc mines of southwestern Wisconsin"@en . . "A study of methods of mine valuation and assessment : with special reference to the zinc mines of southwestern Wisconsin" . "A study of methods valuation and assessment : with special reference to the zinc mines of southwestern Wisconsin" . . . . . . . . . . . . . "A study of methods of mine valuation and assessment with special reference to the zine mines of Southwestern Wisconsin" . . . . . . . . .